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Finding the Fourth Proportional to 71,154.99, 106,699.68 and 41,581.89

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Solution

The fourth proportional to 71,154.99, 106,699.68 and 41,581.89 is: 62,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,154.99 : 106,699.68 = 41,581.89 : x
  2. Step 2: Convert to fraction form
    71,154.99/106,699.68 = 41,581.89/x
  3. Step 3: Cross multiply
    71,154.99x = 106,699.68 × 41,581.89
  4. Step 4: Simplify right side
    71,154.99x = 4,436,774,356.80
  5. Step 5: Solve for x
    x = 4,436,774,356.80/71,154.99
  6. Step 6: Final answer
    x = 62,353.66

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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.