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Finding the Fourth Proportional to 87,246.54, 130,672.98 and 40,401

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Solution

The fourth proportional to 87,246.54, 130,672.98 and 40,401 is: 60,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,246.54 : 130,672.98 = 40,401 : x
  2. Step 2: Convert to fraction form
    87,246.54/130,672.98 = 40,401/x
  3. Step 3: Cross multiply
    87,246.54x = 130,672.98 × 40,401
  4. Step 4: Simplify right side
    87,246.54x = 5,279,319,064.98
  5. Step 5: Solve for x
    x = 5,279,319,064.98/87,246.54
  6. Step 6: Final answer
    x = 60,510.35

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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.