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Finding the Fourth Proportional to 217,057.17, 299,510.46 and 125,179.89

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Solution

The fourth proportional to 217,057.17, 299,510.46 and 125,179.89 is: 172,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,057.17 : 299,510.46 = 125,179.89 : x
  2. Step 2: Convert to fraction form
    217,057.17/299,510.46 = 125,179.89/x
  3. Step 3: Cross multiply
    217,057.17x = 299,510.46 × 125,179.89
  4. Step 4: Simplify right side
    217,057.17x = 37,492,686,436.65
  5. Step 5: Solve for x
    x = 37,492,686,436.65/217,057.17
  6. Step 6: Final answer
    x = 172,731.85

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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.