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Finding the Fourth Proportional to 119,861.79, 179,872.95 and 49,741.17

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Solution

The fourth proportional to 119,861.79, 179,872.95 and 49,741.17 is: 74,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,861.79 : 179,872.95 = 49,741.17 : x
  2. Step 2: Convert to fraction form
    119,861.79/179,872.95 = 49,741.17/x
  3. Step 3: Cross multiply
    119,861.79x = 179,872.95 × 49,741.17
  4. Step 4: Simplify right side
    119,861.79x = 8,947,090,984.35
  5. Step 5: Solve for x
    x = 8,947,090,984.35/119,861.79
  6. Step 6: Final answer
    x = 74,645.06

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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.