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Finding the Fourth Proportional to 185,842.95, 278,775 and 52,712.70

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Solution

The fourth proportional to 185,842.95, 278,775 and 52,712.70 is: 79,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,842.95 : 278,775 = 52,712.70 : x
  2. Step 2: Convert to fraction form
    185,842.95/278,775 = 52,712.70/x
  3. Step 3: Cross multiply
    185,842.95x = 278,775 × 52,712.70
  4. Step 4: Simplify right side
    185,842.95x = 14,694,982,942.50
  5. Step 5: Solve for x
    x = 14,694,982,942.50/185,842.95
  6. Step 6: Final answer
    x = 79,072.05

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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.