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Finding the Fourth Proportional to 61,427.92, 92,045.88 and 42,744.46

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Solution

The fourth proportional to 61,427.92, 92,045.88 and 42,744.46 is: 64,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,427.92 : 92,045.88 = 42,744.46 : x
  2. Step 2: Convert to fraction form
    61,427.92/92,045.88 = 42,744.46/x
  3. Step 3: Cross multiply
    61,427.92x = 92,045.88 × 42,744.46
  4. Step 4: Simplify right side
    61,427.92x = 3,934,451,435.82
  5. Step 5: Solve for x
    x = 3,934,451,435.82/61,427.92
  6. Step 6: Final answer
    x = 64,049.89

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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.