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Finding the Fourth Proportional to 70,718.55, 106,081.15 and 23,337.78

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Solution

The fourth proportional to 70,718.55, 106,081.15 and 23,337.78 is: 35,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,718.55 : 106,081.15 = 23,337.78 : x
  2. Step 2: Convert to fraction form
    70,718.55/106,081.15 = 23,337.78/x
  3. Step 3: Cross multiply
    70,718.55x = 106,081.15 × 23,337.78
  4. Step 4: Simplify right side
    70,718.55x = 2,475,698,540.85
  5. Step 5: Solve for x
    x = 2,475,698,540.85/70,718.55
  6. Step 6: Final answer
    x = 35,007.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.