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Finding the Fourth Proportional to 125,165.46, 187,759.71 and 40,926.06

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Solution

The fourth proportional to 125,165.46, 187,759.71 and 40,926.06 is: 61,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.46 : 187,759.71 = 40,926.06 : x
  2. Step 2: Convert to fraction form
    125,165.46/187,759.71 = 40,926.06/x
  3. Step 3: Cross multiply
    125,165.46x = 187,759.71 × 40,926.06
  4. Step 4: Simplify right side
    125,165.46x = 7,684,265,157.04
  5. Step 5: Solve for x
    x = 7,684,265,157.04/125,165.46
  6. Step 6: Final answer
    x = 61,392.86

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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.