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Finding the Fourth Proportional to 88,682.60, 133,023.90 and 82,807.40

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Solution

The fourth proportional to 88,682.60, 133,023.90 and 82,807.40 is: 124,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,682.60 : 133,023.90 = 82,807.40 : x
  2. Step 2: Convert to fraction form
    88,682.60/133,023.90 = 82,807.40/x
  3. Step 3: Cross multiply
    88,682.60x = 133,023.90 × 82,807.40
  4. Step 4: Simplify right side
    88,682.60x = 11,015,363,296.86
  5. Step 5: Solve for x
    x = 11,015,363,296.86/88,682.60
  6. Step 6: Final answer
    x = 124,211.10

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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.