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Finding the Fourth Proportional to 178,889.91, 268,332.97 and 45,769.11

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Solution

The fourth proportional to 178,889.91, 268,332.97 and 45,769.11 is: 68,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,889.91 : 268,332.97 = 45,769.11 : x
  2. Step 2: Convert to fraction form
    178,889.91/268,332.97 = 45,769.11/x
  3. Step 3: Cross multiply
    178,889.91x = 268,332.97 × 45,769.11
  4. Step 4: Simplify right side
    178,889.91x = 12,281,361,220.56
  5. Step 5: Solve for x
    x = 12,281,361,220.56/178,889.91
  6. Step 6: Final answer
    x = 68,653.18

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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.