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Finding the Fourth Proportional to 125,876.24, 173,725.80 and 75,578.48

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Solution

The fourth proportional to 125,876.24, 173,725.80 and 75,578.48 is: 104,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,876.24 : 173,725.80 = 75,578.48 : x
  2. Step 2: Convert to fraction form
    125,876.24/173,725.80 = 75,578.48/x
  3. Step 3: Cross multiply
    125,876.24x = 173,725.80 × 75,578.48
  4. Step 4: Simplify right side
    125,876.24x = 13,129,931,900.78
  5. Step 5: Solve for x
    x = 13,129,931,900.78/125,876.24
  6. Step 6: Final answer
    x = 104,308.26

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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.