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Finding the Fourth Proportional to 272,659.48, 376,278.48 and 148,488.76

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Solution

The fourth proportional to 272,659.48, 376,278.48 and 148,488.76 is: 204,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,659.48 : 376,278.48 = 148,488.76 : x
  2. Step 2: Convert to fraction form
    272,659.48/376,278.48 = 148,488.76/x
  3. Step 3: Cross multiply
    272,659.48x = 376,278.48 × 148,488.76
  4. Step 4: Simplify right side
    272,659.48x = 55,873,124,909.88
  5. Step 5: Solve for x
    x = 55,873,124,909.88/272,659.48
  6. Step 6: Final answer
    x = 204,919.06

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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.