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Finding the Fourth Proportional to 72,108.86, 108,046.64 and 58,967.42

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Solution

The fourth proportional to 72,108.86, 108,046.64 and 58,967.42 is: 88,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,108.86 : 108,046.64 = 58,967.42 : x
  2. Step 2: Convert to fraction form
    72,108.86/108,046.64 = 58,967.42/x
  3. Step 3: Cross multiply
    72,108.86x = 108,046.64 × 58,967.42
  4. Step 4: Simplify right side
    72,108.86x = 6,371,231,207.65
  5. Step 5: Solve for x
    x = 6,371,231,207.65/72,108.86
  6. Step 6: Final answer
    x = 88,355.74

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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.