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Finding the Fourth Proportional to 187,252.76, 280,920.76 and 87,358.46

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Solution

The fourth proportional to 187,252.76, 280,920.76 and 87,358.46 is: 131,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,252.76 : 280,920.76 = 87,358.46 : x
  2. Step 2: Convert to fraction form
    187,252.76/280,920.76 = 87,358.46/x
  3. Step 3: Cross multiply
    187,252.76x = 280,920.76 × 87,358.46
  4. Step 4: Simplify right side
    187,252.76x = 24,540,805,029.16
  5. Step 5: Solve for x
    x = 24,540,805,029.16/187,252.76
  6. Step 6: Final answer
    x = 131,057.11

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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.