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Finding the Fourth Proportional to 125,740.77, 173,522.97 and 68,380.76

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Solution

The fourth proportional to 125,740.77, 173,522.97 and 68,380.76 is: 94,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,740.77 : 173,522.97 = 68,380.76 : x
  2. Step 2: Convert to fraction form
    125,740.77/173,522.97 = 68,380.76/x
  3. Step 3: Cross multiply
    125,740.77x = 173,522.97 × 68,380.76
  4. Step 4: Simplify right side
    125,740.77x = 11,865,632,566.06
  5. Step 5: Solve for x
    x = 11,865,632,566.06/125,740.77
  6. Step 6: Final answer
    x = 94,365.83

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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.