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Finding the Fourth Proportional to 272,305.68, 375,775.28 and 148,123.44

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Solution

The fourth proportional to 272,305.68, 375,775.28 and 148,123.44 is: 204,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,305.68 : 375,775.28 = 148,123.44 : x
  2. Step 2: Convert to fraction form
    272,305.68/375,775.28 = 148,123.44/x
  3. Step 3: Cross multiply
    272,305.68x = 375,775.28 × 148,123.44
  4. Step 4: Simplify right side
    272,305.68x = 55,661,127,140.56
  5. Step 5: Solve for x
    x = 55,661,127,140.56/272,305.68
  6. Step 6: Final answer
    x = 204,406.78

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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.