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Finding the Fourth Proportional to 88,670.12, 132,976.62 and 29,489.90

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Solution

The fourth proportional to 88,670.12, 132,976.62 and 29,489.90 is: 44,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,670.12 : 132,976.62 = 29,489.90 : x
  2. Step 2: Convert to fraction form
    88,670.12/132,976.62 = 29,489.90/x
  3. Step 3: Cross multiply
    88,670.12x = 132,976.62 × 29,489.90
  4. Step 4: Simplify right side
    88,670.12x = 3,921,466,561.25
  5. Step 5: Solve for x
    x = 3,921,466,561.25/88,670.12
  6. Step 6: Final answer
    x = 44,225.35

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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.