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Finding the Fourth Proportional to 577,738.17, 866,432.30 and 156,959.37

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Solution

The fourth proportional to 577,738.17, 866,432.30 and 156,959.37 is: 235,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,738.17 : 866,432.30 = 156,959.37 : x
  2. Step 2: Convert to fraction form
    577,738.17/866,432.30 = 156,959.37/x
  3. Step 3: Cross multiply
    577,738.17x = 866,432.30 × 156,959.37
  4. Step 4: Simplify right side
    577,738.17x = 135,994,667,170.85
  5. Step 5: Solve for x
    x = 135,994,667,170.85/577,738.17
  6. Step 6: Final answer
    x = 235,391.52

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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.