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Finding the Fourth Proportional to 172,951.16, 238,672.46 and 93,463.16

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Solution

The fourth proportional to 172,951.16, 238,672.46 and 93,463.16 is: 128,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,951.16 : 238,672.46 = 93,463.16 : x
  2. Step 2: Convert to fraction form
    172,951.16/238,672.46 = 93,463.16/x
  3. Step 3: Cross multiply
    172,951.16x = 238,672.46 × 93,463.16
  4. Step 4: Simplify right side
    172,951.16x = 22,307,082,316.57
  5. Step 5: Solve for x
    x = 22,307,082,316.57/172,951.16
  6. Step 6: Final answer
    x = 128,979.08

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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.