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Finding the Fourth Proportional to 114,937.43, 158,635.50 and 71,936.90

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Solution

The fourth proportional to 114,937.43, 158,635.50 and 71,936.90 is: 99,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,937.43 : 158,635.50 = 71,936.90 : x
  2. Step 2: Convert to fraction form
    114,937.43/158,635.50 = 71,936.90/x
  3. Step 3: Cross multiply
    114,937.43x = 158,635.50 × 71,936.90
  4. Step 4: Simplify right side
    114,937.43x = 11,411,746,099.95
  5. Step 5: Solve for x
    x = 11,411,746,099.95/114,937.43
  6. Step 6: Final answer
    x = 99,286.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.