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Finding the Fourth Proportional to 187,091.66, 280,639.89 and 62,432.66

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Solution

The fourth proportional to 187,091.66, 280,639.89 and 62,432.66 is: 93,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,091.66 : 280,639.89 = 62,432.66 : x
  2. Step 2: Convert to fraction form
    187,091.66/280,639.89 = 62,432.66/x
  3. Step 3: Cross multiply
    187,091.66x = 280,639.89 × 62,432.66
  4. Step 4: Simplify right side
    187,091.66x = 17,521,094,834.81
  5. Step 5: Solve for x
    x = 17,521,094,834.81/187,091.66
  6. Step 6: Final answer
    x = 93,649.79

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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.