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Finding the Fourth Proportional to 48,737.61, 72,940.07 and 40,849.03

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Solution

The fourth proportional to 48,737.61, 72,940.07 and 40,849.03 is: 61,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,737.61 : 72,940.07 = 40,849.03 : x
  2. Step 2: Convert to fraction form
    48,737.61/72,940.07 = 40,849.03/x
  3. Step 3: Cross multiply
    48,737.61x = 72,940.07 × 40,849.03
  4. Step 4: Simplify right side
    48,737.61x = 2,979,530,538.69
  5. Step 5: Solve for x
    x = 2,979,530,538.69/48,737.61
  6. Step 6: Final answer
    x = 61,134.12

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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.