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Finding the Fourth Proportional to 373,992.28, 516,146.68 and 223,089.28

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Solution

The fourth proportional to 373,992.28, 516,146.68 and 223,089.28 is: 307,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,992.28 : 516,146.68 = 223,089.28 : x
  2. Step 2: Convert to fraction form
    373,992.28/516,146.68 = 223,089.28/x
  3. Step 3: Cross multiply
    373,992.28x = 516,146.68 × 223,089.28
  4. Step 4: Simplify right side
    373,992.28x = 115,146,791,215.59
  5. Step 5: Solve for x
    x = 115,146,791,215.59/373,992.28
  6. Step 6: Final answer
    x = 307,885.48

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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.