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Finding the Fourth Proportional to 70,842.66, 106,278.66 and 59,236.98

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Solution

The fourth proportional to 70,842.66, 106,278.66 and 59,236.98 is: 88,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,842.66 : 106,278.66 = 59,236.98 : x
  2. Step 2: Convert to fraction form
    70,842.66/106,278.66 = 59,236.98/x
  3. Step 3: Cross multiply
    70,842.66x = 106,278.66 × 59,236.98
  4. Step 4: Simplify right side
    70,842.66x = 6,295,626,856.85
  5. Step 5: Solve for x
    x = 6,295,626,856.85/70,842.66
  6. Step 6: Final answer
    x = 88,867.74

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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.