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Finding the Fourth Proportional to 119,658.40, 179,422.80 and 49,458.40

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Solution

The fourth proportional to 119,658.40, 179,422.80 and 49,458.40 is: 74,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,658.40 : 179,422.80 = 49,458.40 : x
  2. Step 2: Convert to fraction form
    119,658.40/179,422.80 = 49,458.40/x
  3. Step 3: Cross multiply
    119,658.40x = 179,422.80 × 49,458.40
  4. Step 4: Simplify right side
    119,658.40x = 8,873,964,611.52
  5. Step 5: Solve for x
    x = 8,873,964,611.52/119,658.40
  6. Step 6: Final answer
    x = 74,160.82

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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.