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Finding the Fourth Proportional to 239,761.98, 359,642.85 and 71,281.58

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Solution

The fourth proportional to 239,761.98, 359,642.85 and 71,281.58 is: 106,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,761.98 : 359,642.85 = 71,281.58 : x
  2. Step 2: Convert to fraction form
    239,761.98/359,642.85 = 71,281.58/x
  3. Step 3: Cross multiply
    239,761.98x = 359,642.85 × 71,281.58
  4. Step 4: Simplify right side
    239,761.98x = 25,635,908,785.49
  5. Step 5: Solve for x
    x = 25,635,908,785.49/239,761.98
  6. Step 6: Final answer
    x = 106,922.33

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1.5x scale

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.