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Finding the Fourth Proportional to 124,861.76, 186,983.52 and 114,374.72

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Solution

The fourth proportional to 124,861.76, 186,983.52 and 114,374.72 is: 171,278.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.76 : 186,983.52 = 114,374.72 : x
  2. Step 2: Convert to fraction form
    124,861.76/186,983.52 = 114,374.72/x
  3. Step 3: Cross multiply
    124,861.76x = 186,983.52 × 114,374.72
  4. Step 4: Simplify right side
    124,861.76x = 21,386,187,744.61
  5. Step 5: Solve for x
    x = 21,386,187,744.61/124,861.76
  6. Step 6: Final answer
    x = 171,278.92

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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.