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Finding the Fourth Proportional to 178,815.93, 268,223.19 and 45,695.97

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Solution

The fourth proportional to 178,815.93, 268,223.19 and 45,695.97 is: 68,543.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,815.93 : 268,223.19 = 45,695.97 : x
  2. Step 2: Convert to fraction form
    178,815.93/268,223.19 = 45,695.97/x
  3. Step 3: Cross multiply
    178,815.93x = 268,223.19 × 45,695.97
  4. Step 4: Simplify right side
    178,815.93x = 12,256,718,843.54
  5. Step 5: Solve for x
    x = 12,256,718,843.54/178,815.93
  6. Step 6: Final answer
    x = 68,543.77

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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.