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Finding the Fourth Proportional to 71,423.70, 107,135.55 and 59,846.10

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Solution

The fourth proportional to 71,423.70, 107,135.55 and 59,846.10 is: 89,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,423.70 : 107,135.55 = 59,846.10 : x
  2. Step 2: Convert to fraction form
    71,423.70/107,135.55 = 59,846.10/x
  3. Step 3: Cross multiply
    71,423.70x = 107,135.55 × 59,846.10
  4. Step 4: Simplify right side
    71,423.70x = 6,411,644,838.86
  5. Step 5: Solve for x
    x = 6,411,644,838.86/71,423.70
  6. Step 6: Final answer
    x = 89,769.15

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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.