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Finding the Fourth Proportional to 88,089.67, 131,978.80 and 46,565.83

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Solution

The fourth proportional to 88,089.67, 131,978.80 and 46,565.83 is: 69,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,089.67 : 131,978.80 = 46,565.83 : x
  2. Step 2: Convert to fraction form
    88,089.67/131,978.80 = 46,565.83/x
  3. Step 3: Cross multiply
    88,089.67x = 131,978.80 × 46,565.83
  4. Step 4: Simplify right side
    88,089.67x = 6,145,701,471.68
  5. Step 5: Solve for x
    x = 6,145,701,471.68/88,089.67
  6. Step 6: Final answer
    x = 69,766.43

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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.