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Finding the Fourth Proportional to 87,343.56, 130,905.72 and 37,364.92

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Solution

The fourth proportional to 87,343.56, 130,905.72 and 37,364.92 is: 56,000.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343.56 : 130,905.72 = 37,364.92 : x
  2. Step 2: Convert to fraction form
    87,343.56/130,905.72 = 37,364.92/x
  3. Step 3: Cross multiply
    87,343.56x = 130,905.72 × 37,364.92
  4. Step 4: Simplify right side
    87,343.56x = 4,891,281,755.34
  5. Step 5: Solve for x
    x = 4,891,281,755.34/87,343.56
  6. Step 6: Final answer
    x = 56,000.49

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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.