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Finding the Fourth Proportional to 137,769.80, 206,606.10 and 62,925.80

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Solution

The fourth proportional to 137,769.80, 206,606.10 and 62,925.80 is: 94,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,769.80 : 206,606.10 = 62,925.80 : x
  2. Step 2: Convert to fraction form
    137,769.80/206,606.10 = 62,925.80/x
  3. Step 3: Cross multiply
    137,769.80x = 206,606.10 × 62,925.80
  4. Step 4: Simplify right side
    137,769.80x = 13,000,854,127.38
  5. Step 5: Solve for x
    x = 13,000,854,127.38/137,769.80
  6. Step 6: Final answer
    x = 94,366.50

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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.