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Finding the Fourth Proportional to 125,080.43, 187,626.11 and 40,839.93

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Solution

The fourth proportional to 125,080.43, 187,626.11 and 40,839.93 is: 61,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,080.43 : 187,626.11 = 40,839.93 : x
  2. Step 2: Convert to fraction form
    125,080.43/187,626.11 = 40,839.93/x
  3. Step 3: Cross multiply
    125,080.43x = 187,626.11 × 40,839.93
  4. Step 4: Simplify right side
    125,080.43x = 7,662,636,994.37
  5. Step 5: Solve for x
    x = 7,662,636,994.37/125,080.43
  6. Step 6: Final answer
    x = 61,261.68

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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.