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Finding the Fourth Proportional to 108,046.80, 149,044.68 and 63,326.16

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Solution

The fourth proportional to 108,046.80, 149,044.68 and 63,326.16 is: 87,354.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,046.80 : 149,044.68 = 63,326.16 : x
  2. Step 2: Convert to fraction form
    108,046.80/149,044.68 = 63,326.16/x
  3. Step 3: Cross multiply
    108,046.80x = 149,044.68 × 63,326.16
  4. Step 4: Simplify right side
    108,046.80x = 9,438,427,252.83
  5. Step 5: Solve for x
    x = 9,438,427,252.83/108,046.80
  6. Step 6: Final answer
    x = 87,354.99

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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.