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Finding the Fourth Proportional to 375,497.72, 563,236.86 and 126,179.72

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Solution

The fourth proportional to 375,497.72, 563,236.86 and 126,179.72 is: 189,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,497.72 : 563,236.86 = 126,179.72 : x
  2. Step 2: Convert to fraction form
    375,497.72/563,236.86 = 126,179.72/x
  3. Step 3: Cross multiply
    375,497.72x = 563,236.86 × 126,179.72
  4. Step 4: Simplify right side
    375,497.72x = 71,069,069,288.48
  5. Step 5: Solve for x
    x = 71,069,069,288.48/375,497.72
  6. Step 6: Final answer
    x = 189,266.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.