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Finding the Fourth Proportional to 88,101.42, 132,151.65 and 21,541.80

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Solution

The fourth proportional to 88,101.42, 132,151.65 and 21,541.80 is: 32,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,101.42 : 132,151.65 = 21,541.80 : x
  2. Step 2: Convert to fraction form
    88,101.42/132,151.65 = 21,541.80/x
  3. Step 3: Cross multiply
    88,101.42x = 132,151.65 × 21,541.80
  4. Step 4: Simplify right side
    88,101.42x = 2,846,784,413.97
  5. Step 5: Solve for x
    x = 2,846,784,413.97/88,101.42
  6. Step 6: Final answer
    x = 32,312.58

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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.