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Finding the Fourth Proportional to 88,270.80, 132,406.20 and 73,237.20

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Solution

The fourth proportional to 88,270.80, 132,406.20 and 73,237.20 is: 109,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,270.80 : 132,406.20 = 73,237.20 : x
  2. Step 2: Convert to fraction form
    88,270.80/132,406.20 = 73,237.20/x
  3. Step 3: Cross multiply
    88,270.80x = 132,406.20 × 73,237.20
  4. Step 4: Simplify right side
    88,270.80x = 9,697,059,350.64
  5. Step 5: Solve for x
    x = 9,697,059,350.64/88,270.80
  6. Step 6: Final answer
    x = 109,855.80

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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.