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Finding the Fourth Proportional to 88,046.30, 132,069.45 and 80,443.10

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Solution

The fourth proportional to 88,046.30, 132,069.45 and 80,443.10 is: 120,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,046.30 : 132,069.45 = 80,443.10 : x
  2. Step 2: Convert to fraction form
    88,046.30/132,069.45 = 80,443.10/x
  3. Step 3: Cross multiply
    88,046.30x = 132,069.45 × 80,443.10
  4. Step 4: Simplify right side
    88,046.30x = 10,624,075,973.30
  5. Step 5: Solve for x
    x = 10,624,075,973.30/88,046.30
  6. Step 6: Final answer
    x = 120,664.65

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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.