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Finding the Fourth Proportional to 108,566, 149,829.76 and 63,862.64

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Solution

The fourth proportional to 108,566, 149,829.76 and 63,862.64 is: 88,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,566 : 149,829.76 = 63,862.64 : x
  2. Step 2: Convert to fraction form
    108,566/149,829.76 = 63,862.64/x
  3. Step 3: Cross multiply
    108,566x = 149,829.76 × 63,862.64
  4. Step 4: Simplify right side
    108,566x = 9,568,524,024.17
  5. Step 5: Solve for x
    x = 9,568,524,024.17/108,566
  6. Step 6: Final answer
    x = 88,135.55

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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.