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Finding the Fourth Proportional to 125,873.39, 173,709.53 and 68,514.80

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Solution

The fourth proportional to 125,873.39, 173,709.53 and 68,514.80 is: 94,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,873.39 : 173,709.53 = 68,514.80 : x
  2. Step 2: Convert to fraction form
    125,873.39/173,709.53 = 68,514.80/x
  3. Step 3: Cross multiply
    125,873.39x = 173,709.53 × 68,514.80
  4. Step 4: Simplify right side
    125,873.39x = 11,901,672,494.92
  5. Step 5: Solve for x
    x = 11,901,672,494.92/125,873.39
  6. Step 6: Final answer
    x = 94,552.73

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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.