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Finding the Fourth Proportional to 177,874.98, 266,686.65 and 89,064.78

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Solution

The fourth proportional to 177,874.98, 266,686.65 and 89,064.78 is: 133,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,874.98 : 266,686.65 = 89,064.78 : x
  2. Step 2: Convert to fraction form
    177,874.98/266,686.65 = 89,064.78/x
  3. Step 3: Cross multiply
    177,874.98x = 266,686.65 × 89,064.78
  4. Step 4: Simplify right side
    177,874.98x = 23,752,387,811.19
  5. Step 5: Solve for x
    x = 23,752,387,811.19/177,874.98
  6. Step 6: Final answer
    x = 133,534.17

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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.