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Finding the Fourth Proportional to 169,778,978.40, 254,668,467.60 and 169,778,978.40

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Solution

The fourth proportional to 169,778,978.40, 254,668,467.60 and 169,778,978.40 is: 254,668,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,778,978.40 : 254,668,467.60 = 169,778,978.40 : x
  2. Step 2: Convert to fraction form
    169,778,978.40/254,668,467.60 = 169,778,978.40/x
  3. Step 3: Cross multiply
    169,778,978.40x = 254,668,467.60 × 169,778,978.40
  4. Step 4: Simplify right side
    169,778,978.40x = 43,237,352,259,821,504
  5. Step 5: Solve for x
    x = 43,237,352,259,821,504/169,778,978.40
  6. Step 6: Final answer
    x = 254,668,467.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.