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Finding the Fourth Proportional to 125,035.93, 187,960.31 and 100,346.52

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Solution

The fourth proportional to 125,035.93, 187,960.31 and 100,346.52 is: 150,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,035.93 : 187,960.31 = 100,346.52 : x
  2. Step 2: Convert to fraction form
    125,035.93/187,960.31 = 100,346.52/x
  3. Step 3: Cross multiply
    125,035.93x = 187,960.31 × 100,346.52
  4. Step 4: Simplify right side
    125,035.93x = 18,861,163,257.49
  5. Step 5: Solve for x
    x = 18,861,163,257.49/125,035.93
  6. Step 6: Final answer
    x = 150,845.95

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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.