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Finding the Fourth Proportional to 67,318.92, 101,109.60 and 54,848.16

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Solution

The fourth proportional to 67,318.92, 101,109.60 and 54,848.16 is: 82,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,318.92 : 101,109.60 = 54,848.16 : x
  2. Step 2: Convert to fraction form
    67,318.92/101,109.60 = 54,848.16/x
  3. Step 3: Cross multiply
    67,318.92x = 101,109.60 × 54,848.16
  4. Step 4: Simplify right side
    67,318.92x = 5,545,675,518.34
  5. Step 5: Solve for x
    x = 5,545,675,518.34/67,318.92
  6. Step 6: Final answer
    x = 82,379.15

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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.