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Finding the Fourth Proportional to 140,750.88, 211,148.28 and 47,278.56

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Solution

The fourth proportional to 140,750.88, 211,148.28 and 47,278.56 is: 70,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,750.88 : 211,148.28 = 47,278.56 : x
  2. Step 2: Convert to fraction form
    140,750.88/211,148.28 = 47,278.56/x
  3. Step 3: Cross multiply
    140,750.88x = 211,148.28 × 47,278.56
  4. Step 4: Simplify right side
    140,750.88x = 9,982,786,624.88
  5. Step 5: Solve for x
    x = 9,982,786,624.88/140,750.88
  6. Step 6: Final answer
    x = 70,925.22

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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.