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Finding the Fourth Proportional to 88,323.52, 132,534.72 and 68,641.60

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Solution

The fourth proportional to 88,323.52, 132,534.72 and 68,641.60 is: 103,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,323.52 : 132,534.72 = 68,641.60 : x
  2. Step 2: Convert to fraction form
    88,323.52/132,534.72 = 68,641.60/x
  3. Step 3: Cross multiply
    88,323.52x = 132,534.72 × 68,641.60
  4. Step 4: Simplify right side
    88,323.52x = 9,097,395,236.35
  5. Step 5: Solve for x
    x = 9,097,395,236.35/88,323.52
  6. Step 6: Final answer
    x = 103,000.82

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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.