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Finding the Fourth Proportional to 137,480.40, 206,123.40 and 62,636.40

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Solution

The fourth proportional to 137,480.40, 206,123.40 and 62,636.40 is: 93,910.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,480.40 : 206,123.40 = 62,636.40 : x
  2. Step 2: Convert to fraction form
    137,480.40/206,123.40 = 62,636.40/x
  3. Step 3: Cross multiply
    137,480.40x = 206,123.40 × 62,636.40
  4. Step 4: Simplify right side
    137,480.40x = 12,910,827,731.76
  5. Step 5: Solve for x
    x = 12,910,827,731.76/137,480.40
  6. Step 6: Final answer
    x = 93,910.32

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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.