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Finding the Fourth Proportional to 73,049.61, 109,579.28 and 25,658.94

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Solution

The fourth proportional to 73,049.61, 109,579.28 and 25,658.94 is: 38,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.61 : 109,579.28 = 25,658.94 : x
  2. Step 2: Convert to fraction form
    73,049.61/109,579.28 = 25,658.94/x
  3. Step 3: Cross multiply
    73,049.61x = 109,579.28 × 25,658.94
  4. Step 4: Simplify right side
    73,049.61x = 2,811,688,042.47
  5. Step 5: Solve for x
    x = 2,811,688,042.47/73,049.61
  6. Step 6: Final answer
    x = 38,490.12

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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.