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Finding the Fourth Proportional to 70,251.78, 96,949.98 and 40,041.66

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Solution

The fourth proportional to 70,251.78, 96,949.98 and 40,041.66 is: 55,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,251.78 : 96,949.98 = 40,041.66 : x
  2. Step 2: Convert to fraction form
    70,251.78/96,949.98 = 40,041.66/x
  3. Step 3: Cross multiply
    70,251.78x = 96,949.98 × 40,041.66
  4. Step 4: Simplify right side
    70,251.78x = 3,882,038,136.17
  5. Step 5: Solve for x
    x = 3,882,038,136.17/70,251.78
  6. Step 6: Final answer
    x = 55,258.93

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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.