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Finding the Fourth Proportional to 88,388.60, 132,437.10 and 75,266.60

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Solution

The fourth proportional to 88,388.60, 132,437.10 and 75,266.60 is: 112,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,388.60 : 132,437.10 = 75,266.60 : x
  2. Step 2: Convert to fraction form
    88,388.60/132,437.10 = 75,266.60/x
  3. Step 3: Cross multiply
    88,388.60x = 132,437.10 × 75,266.60
  4. Step 4: Simplify right side
    88,388.60x = 9,968,090,230.86
  5. Step 5: Solve for x
    x = 9,968,090,230.86/88,388.60
  6. Step 6: Final answer
    x = 112,775.75

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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.