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Finding the Fourth Proportional to 88,354.80, 132,337.80 and 76,690.80

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Solution

The fourth proportional to 88,354.80, 132,337.80 and 76,690.80 is: 114,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,354.80 : 132,337.80 = 76,690.80 : x
  2. Step 2: Convert to fraction form
    88,354.80/132,337.80 = 76,690.80/x
  3. Step 3: Cross multiply
    88,354.80x = 132,337.80 × 76,690.80
  4. Step 4: Simplify right side
    88,354.80x = 10,149,091,752.24
  5. Step 5: Solve for x
    x = 10,149,091,752.24/88,354.80
  6. Step 6: Final answer
    x = 114,867.46

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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.