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Finding the Fourth Proportional to 125,015.19, 187,439.22 and 68,882.19

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Solution

The fourth proportional to 125,015.19, 187,439.22 and 68,882.19 is: 103,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,015.19 : 187,439.22 = 68,882.19 : x
  2. Step 2: Convert to fraction form
    125,015.19/187,439.22 = 68,882.19/x
  3. Step 3: Cross multiply
    125,015.19x = 187,439.22 × 68,882.19
  4. Step 4: Simplify right side
    125,015.19x = 12,911,223,965.49
  5. Step 5: Solve for x
    x = 12,911,223,965.49/125,015.19
  6. Step 6: Final answer
    x = 103,277.24

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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.