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Finding the Fourth Proportional to 223,461.43, 308,167.89 and 172,393.62

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Solution

The fourth proportional to 223,461.43, 308,167.89 and 172,393.62 is: 237,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,461.43 : 308,167.89 = 172,393.62 : x
  2. Step 2: Convert to fraction form
    223,461.43/308,167.89 = 172,393.62/x
  3. Step 3: Cross multiply
    223,461.43x = 308,167.89 × 172,393.62
  4. Step 4: Simplify right side
    223,461.43x = 53,126,177,292.47
  5. Step 5: Solve for x
    x = 53,126,177,292.47/223,461.43
  6. Step 6: Final answer
    x = 237,742.04

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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.