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Finding the Fourth Proportional to 172,904.74, 238,608.08 and 96,423.92

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Solution

The fourth proportional to 172,904.74, 238,608.08 and 96,423.92 is: 133,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,904.74 : 238,608.08 = 96,423.92 : x
  2. Step 2: Convert to fraction form
    172,904.74/238,608.08 = 96,423.92/x
  3. Step 3: Cross multiply
    172,904.74x = 238,608.08 × 96,423.92
  4. Step 4: Simplify right side
    172,904.74x = 23,007,527,340.65
  5. Step 5: Solve for x
    x = 23,007,527,340.65/172,904.74
  6. Step 6: Final answer
    x = 133,064.76

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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.