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Finding the Fourth Proportional to 165,649.60, 248,506.80 and 70,879.60

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Solution

The fourth proportional to 165,649.60, 248,506.80 and 70,879.60 is: 106,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,649.60 : 248,506.80 = 70,879.60 : x
  2. Step 2: Convert to fraction form
    165,649.60/248,506.80 = 70,879.60/x
  3. Step 3: Cross multiply
    165,649.60x = 248,506.80 × 70,879.60
  4. Step 4: Simplify right side
    165,649.60x = 17,614,062,581.28
  5. Step 5: Solve for x
    x = 17,614,062,581.28/165,649.60
  6. Step 6: Final answer
    x = 106,333.26

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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.