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Finding the Fourth Proportional to 125,821, 173,634.20 and 69,233.59

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Solution

The fourth proportional to 125,821, 173,634.20 and 69,233.59 is: 95,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,821 : 173,634.20 = 69,233.59 : x
  2. Step 2: Convert to fraction form
    125,821/173,634.20 = 69,233.59/x
  3. Step 3: Cross multiply
    125,821x = 173,634.20 × 69,233.59
  4. Step 4: Simplify right side
    125,821x = 12,021,319,012.78
  5. Step 5: Solve for x
    x = 12,021,319,012.78/125,821
  6. Step 6: Final answer
    x = 95,543.03

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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.