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Finding the Fourth Proportional to 88,103.90, 132,243.36 and 68,595.86

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Solution

The fourth proportional to 88,103.90, 132,243.36 and 68,595.86 is: 102,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,103.90 : 132,243.36 = 68,595.86 : x
  2. Step 2: Convert to fraction form
    88,103.90/132,243.36 = 68,595.86/x
  3. Step 3: Cross multiply
    88,103.90x = 132,243.36 × 68,595.86
  4. Step 4: Simplify right side
    88,103.90x = 9,071,347,008.49
  5. Step 5: Solve for x
    x = 9,071,347,008.49/88,103.90
  6. Step 6: Final answer
    x = 102,961.92

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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.