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Finding the Fourth Proportional to 124,118.56, 171,278.52 and 67,529.96

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Solution

The fourth proportional to 124,118.56, 171,278.52 and 67,529.96 is: 93,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,118.56 : 171,278.52 = 67,529.96 : x
  2. Step 2: Convert to fraction form
    124,118.56/171,278.52 = 67,529.96/x
  3. Step 3: Cross multiply
    124,118.56x = 171,278.52 × 67,529.96
  4. Step 4: Simplify right side
    124,118.56x = 11,566,431,604.46
  5. Step 5: Solve for x
    x = 11,566,431,604.46/124,118.56
  6. Step 6: Final answer
    x = 93,188.57

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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.