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Finding the Fourth Proportional to 185,884.98, 278,670.72 and 80,624.67

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Solution

The fourth proportional to 185,884.98, 278,670.72 and 80,624.67 is: 120,869.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,884.98 : 278,670.72 = 80,624.67 : x
  2. Step 2: Convert to fraction form
    185,884.98/278,670.72 = 80,624.67/x
  3. Step 3: Cross multiply
    185,884.98x = 278,670.72 × 80,624.67
  4. Step 4: Simplify right side
    185,884.98x = 22,467,734,838.66
  5. Step 5: Solve for x
    x = 22,467,734,838.66/185,884.98
  6. Step 6: Final answer
    x = 120,869.02

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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.