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Finding the Fourth Proportional to 73,253.11, 101,089.90 and 39,719.11

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Solution

The fourth proportional to 73,253.11, 101,089.90 and 39,719.11 is: 54,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,253.11 : 101,089.90 = 39,719.11 : x
  2. Step 2: Convert to fraction form
    73,253.11/101,089.90 = 39,719.11/x
  3. Step 3: Cross multiply
    73,253.11x = 101,089.90 × 39,719.11
  4. Step 4: Simplify right side
    73,253.11x = 4,015,200,732.75
  5. Step 5: Solve for x
    x = 4,015,200,732.75/73,253.11
  6. Step 6: Final answer
    x = 54,812.70

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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.