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Finding the Fourth Proportional to 129,794.60, 194,691.90 and 46,677.80

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Solution

The fourth proportional to 129,794.60, 194,691.90 and 46,677.80 is: 70,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.60 : 194,691.90 = 46,677.80 : x
  2. Step 2: Convert to fraction form
    129,794.60/194,691.90 = 46,677.80/x
  3. Step 3: Cross multiply
    129,794.60x = 194,691.90 × 46,677.80
  4. Step 4: Simplify right side
    129,794.60x = 9,087,789,569.82
  5. Step 5: Solve for x
    x = 9,087,789,569.82/129,794.60
  6. Step 6: Final answer
    x = 70,016.70

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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.