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Finding the Fourth Proportional to 108,339.52, 149,540.32 and 63,028.16

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Solution

The fourth proportional to 108,339.52, 149,540.32 and 63,028.16 is: 86,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,339.52 : 149,540.32 = 63,028.16 : x
  2. Step 2: Convert to fraction form
    108,339.52/149,540.32 = 63,028.16/x
  3. Step 3: Cross multiply
    108,339.52x = 149,540.32 × 63,028.16
  4. Step 4: Simplify right side
    108,339.52x = 9,425,251,215.41
  5. Step 5: Solve for x
    x = 9,425,251,215.41/108,339.52
  6. Step 6: Final answer
    x = 86,997.35

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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.