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Finding the Fourth Proportional to 87,045.63, 130,577.87 and 37,131

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Solution

The fourth proportional to 87,045.63, 130,577.87 and 37,131 is: 55,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,045.63 : 130,577.87 = 37,131 : x
  2. Step 2: Convert to fraction form
    87,045.63/130,577.87 = 37,131/x
  3. Step 3: Cross multiply
    87,045.63x = 130,577.87 × 37,131
  4. Step 4: Simplify right side
    87,045.63x = 4,848,486,890.97
  5. Step 5: Solve for x
    x = 4,848,486,890.97/87,045.63
  6. Step 6: Final answer
    x = 55,700.52

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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.