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Finding the Fourth Proportional to 129,499.97, 194,198.90 and 62,920.40

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Solution

The fourth proportional to 129,499.97, 194,198.90 and 62,920.40 is: 94,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,499.97 : 194,198.90 = 62,920.40 : x
  2. Step 2: Convert to fraction form
    129,499.97/194,198.90 = 62,920.40/x
  3. Step 3: Cross multiply
    129,499.97x = 194,198.90 × 62,920.40
  4. Step 4: Simplify right side
    129,499.97x = 12,219,071,181.96
  5. Step 5: Solve for x
    x = 12,219,071,181.96/129,499.97
  6. Step 6: Final answer
    x = 94,355.79

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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.