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Finding the Fourth Proportional to 125,299.32, 172,945.44 and 77,524.44

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Solution

The fourth proportional to 125,299.32, 172,945.44 and 77,524.44 is: 107,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299.32 : 172,945.44 = 77,524.44 : x
  2. Step 2: Convert to fraction form
    125,299.32/172,945.44 = 77,524.44/x
  3. Step 3: Cross multiply
    125,299.32x = 172,945.44 × 77,524.44
  4. Step 4: Simplify right side
    125,299.32x = 13,407,498,386.55
  5. Step 5: Solve for x
    x = 13,407,498,386.55/125,299.32
  6. Step 6: Final answer
    x = 107,003.76

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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.