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Finding the Fourth Proportional to 73,446.81, 101,387.61 and 49,605.78

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Solution

The fourth proportional to 73,446.81, 101,387.61 and 49,605.78 is: 68,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,446.81 : 101,387.61 = 49,605.78 : x
  2. Step 2: Convert to fraction form
    73,446.81/101,387.61 = 49,605.78/x
  3. Step 3: Cross multiply
    73,446.81x = 101,387.61 × 49,605.78
  4. Step 4: Simplify right side
    73,446.81x = 5,029,411,228.36
  5. Step 5: Solve for x
    x = 5,029,411,228.36/73,446.81
  6. Step 6: Final answer
    x = 68,476.92

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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.