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Finding the Fourth Proportional to 73,110.38, 109,643.46 and 38,030.90

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Solution

The fourth proportional to 73,110.38, 109,643.46 and 38,030.90 is: 57,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,110.38 : 109,643.46 = 38,030.90 : x
  2. Step 2: Convert to fraction form
    73,110.38/109,643.46 = 38,030.90/x
  3. Step 3: Cross multiply
    73,110.38x = 109,643.46 × 38,030.90
  4. Step 4: Simplify right side
    73,110.38x = 4,169,839,462.91
  5. Step 5: Solve for x
    x = 4,169,839,462.91/73,110.38
  6. Step 6: Final answer
    x = 57,034.85

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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.