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Finding the Fourth Proportional to 71,382.90, 107,075.12 and 29,252.17

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Solution

The fourth proportional to 71,382.90, 107,075.12 and 29,252.17 is: 43,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.90 : 107,075.12 = 29,252.17 : x
  2. Step 2: Convert to fraction form
    71,382.90/107,075.12 = 29,252.17/x
  3. Step 3: Cross multiply
    71,382.90x = 107,075.12 × 29,252.17
  4. Step 4: Simplify right side
    71,382.90x = 3,132,179,600.59
  5. Step 5: Solve for x
    x = 3,132,179,600.59/71,382.90
  6. Step 6: Final answer
    x = 43,878.57

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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.