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Finding the Fourth Proportional to 125,089.57, 187,635.94 and 40,849.06

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Solution

The fourth proportional to 125,089.57, 187,635.94 and 40,849.06 is: 61,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,089.57 : 187,635.94 = 40,849.06 : x
  2. Step 2: Convert to fraction form
    125,089.57/187,635.94 = 40,849.06/x
  3. Step 3: Cross multiply
    125,089.57x = 187,635.94 × 40,849.06
  4. Step 4: Simplify right side
    125,089.57x = 7,664,751,781.60
  5. Step 5: Solve for x
    x = 7,664,751,781.60/125,089.57
  6. Step 6: Final answer
    x = 61,274.11

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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.