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Finding the Fourth Proportional to 125,994.87, 173,872.89 and 69,406.23

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Solution

The fourth proportional to 125,994.87, 173,872.89 and 69,406.23 is: 95,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,994.87 : 173,872.89 = 69,406.23 : x
  2. Step 2: Convert to fraction form
    125,994.87/173,872.89 = 69,406.23/x
  3. Step 3: Cross multiply
    125,994.87x = 173,872.89 × 69,406.23
  4. Step 4: Simplify right side
    125,994.87x = 12,067,861,794.10
  5. Step 5: Solve for x
    x = 12,067,861,794.10/125,994.87
  6. Step 6: Final answer
    x = 95,780.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.