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Finding the Fourth Proportional to 71,167.80, 106,763.98 and 29,070.74

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Solution

The fourth proportional to 71,167.80, 106,763.98 and 29,070.74 is: 43,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.80 : 106,763.98 = 29,070.74 : x
  2. Step 2: Convert to fraction form
    71,167.80/106,763.98 = 29,070.74/x
  3. Step 3: Cross multiply
    71,167.80x = 106,763.98 × 29,070.74
  4. Step 4: Simplify right side
    71,167.80x = 3,103,707,903.95
  5. Step 5: Solve for x
    x = 3,103,707,903.95/71,167.80
  6. Step 6: Final answer
    x = 43,611.13

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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.