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Finding the Fourth Proportional to 64,491.24, 89,001.90 and 42,944.04

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Solution

The fourth proportional to 64,491.24, 89,001.90 and 42,944.04 is: 59,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,491.24 : 89,001.90 = 42,944.04 : x
  2. Step 2: Convert to fraction form
    64,491.24/89,001.90 = 42,944.04/x
  3. Step 3: Cross multiply
    64,491.24x = 89,001.90 × 42,944.04
  4. Step 4: Simplify right side
    64,491.24x = 3,822,101,153.68
  5. Step 5: Solve for x
    x = 3,822,101,153.68/64,491.24
  6. Step 6: Final answer
    x = 59,265.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.