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Finding the Fourth Proportional to 168,108.31, 250,931.98 and 148,179.88

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Solution

The fourth proportional to 168,108.31, 250,931.98 and 148,179.88 is: 221,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,108.31 : 250,931.98 = 148,179.88 : x
  2. Step 2: Convert to fraction form
    168,108.31/250,931.98 = 148,179.88/x
  3. Step 3: Cross multiply
    168,108.31x = 250,931.98 × 148,179.88
  4. Step 4: Simplify right side
    168,108.31x = 37,183,070,684.56
  5. Step 5: Solve for x
    x = 37,183,070,684.56/168,108.31
  6. Step 6: Final answer
    x = 221,185.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.