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Finding the Fourth Proportional to 108,358.32, 149,531.76 and 60,613.68

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Solution

The fourth proportional to 108,358.32, 149,531.76 and 60,613.68 is: 83,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,358.32 : 149,531.76 = 60,613.68 : x
  2. Step 2: Convert to fraction form
    108,358.32/149,531.76 = 60,613.68/x
  3. Step 3: Cross multiply
    108,358.32x = 149,531.76 × 60,613.68
  4. Step 4: Simplify right side
    108,358.32x = 9,063,670,250.48
  5. Step 5: Solve for x
    x = 9,063,670,250.48/108,358.32
  6. Step 6: Final answer
    x = 83,645.36

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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.