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Finding the Fourth Proportional to 88,020.60, 131,885.10 and 74,898.60

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Solution

The fourth proportional to 88,020.60, 131,885.10 and 74,898.60 is: 112,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,020.60 : 131,885.10 = 74,898.60 : x
  2. Step 2: Convert to fraction form
    88,020.60/131,885.10 = 74,898.60/x
  3. Step 3: Cross multiply
    88,020.60x = 131,885.10 × 74,898.60
  4. Step 4: Simplify right side
    88,020.60x = 9,878,009,350.86
  5. Step 5: Solve for x
    x = 9,878,009,350.86/88,020.60
  6. Step 6: Final answer
    x = 112,223.84

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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.