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Finding the Fourth Proportional to 153,341.74, 211,597.60 and 89,668.45

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Solution

The fourth proportional to 153,341.74, 211,597.60 and 89,668.45 is: 123,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,341.74 : 211,597.60 = 89,668.45 : x
  2. Step 2: Convert to fraction form
    153,341.74/211,597.60 = 89,668.45/x
  3. Step 3: Cross multiply
    153,341.74x = 211,597.60 × 89,668.45
  4. Step 4: Simplify right side
    153,341.74x = 18,973,627,309.39
  5. Step 5: Solve for x
    x = 18,973,627,309.39/153,341.74
  6. Step 6: Final answer
    x = 123,734.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.