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Finding the Fourth Proportional to 87,410.76, 130,834.16 and 45,232.82

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Solution

The fourth proportional to 87,410.76, 130,834.16 and 45,232.82 is: 67,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,410.76 : 130,834.16 = 45,232.82 : x
  2. Step 2: Convert to fraction form
    87,410.76/130,834.16 = 45,232.82/x
  3. Step 3: Cross multiply
    87,410.76x = 130,834.16 × 45,232.82
  4. Step 4: Simplify right side
    87,410.76x = 5,917,997,128.80
  5. Step 5: Solve for x
    x = 5,917,997,128.80/87,410.76
  6. Step 6: Final answer
    x = 67,703.30

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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.