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Finding the Fourth Proportional to 125,223.98, 172,809.59 and 67,863.42

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Solution

The fourth proportional to 125,223.98, 172,809.59 and 67,863.42 is: 93,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,223.98 : 172,809.59 = 67,863.42 : x
  2. Step 2: Convert to fraction form
    125,223.98/172,809.59 = 67,863.42/x
  3. Step 3: Cross multiply
    125,223.98x = 172,809.59 × 67,863.42
  4. Step 4: Simplify right side
    125,223.98x = 11,727,449,446.88
  5. Step 5: Solve for x
    x = 11,727,449,446.88/125,223.98
  6. Step 6: Final answer
    x = 93,651.79

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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.