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Finding the Fourth Proportional to 137,644.64, 206,327.54 and 93,275.90

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Solution

The fourth proportional to 137,644.64, 206,327.54 and 93,275.90 is: 139,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,644.64 : 206,327.54 = 93,275.90 : x
  2. Step 2: Convert to fraction form
    137,644.64/206,327.54 = 93,275.90/x
  3. Step 3: Cross multiply
    137,644.64x = 206,327.54 × 93,275.90
  4. Step 4: Simplify right side
    137,644.64x = 19,245,386,988.29
  5. Step 5: Solve for x
    x = 19,245,386,988.29/137,644.64
  6. Step 6: Final answer
    x = 139,819.37

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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.