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Finding the Fourth Proportional to 124,590.87, 186,694.94 and 84,557.83

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Solution

The fourth proportional to 124,590.87, 186,694.94 and 84,557.83 is: 126,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,590.87 : 186,694.94 = 84,557.83 : x
  2. Step 2: Convert to fraction form
    124,590.87/186,694.94 = 84,557.83/x
  3. Step 3: Cross multiply
    124,590.87x = 186,694.94 × 84,557.83
  4. Step 4: Simplify right side
    124,590.87x = 15,786,518,998.38
  5. Step 5: Solve for x
    x = 15,786,518,998.38/124,590.87
  6. Step 6: Final answer
    x = 126,706.87

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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.