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Finding the Fourth Proportional to 127,848.60, 191,793.15 and 43,616.70

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Solution

The fourth proportional to 127,848.60, 191,793.15 and 43,616.70 is: 65,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,848.60 : 191,793.15 = 43,616.70 : x
  2. Step 2: Convert to fraction form
    127,848.60/191,793.15 = 43,616.70/x
  3. Step 3: Cross multiply
    127,848.60x = 191,793.15 × 43,616.70
  4. Step 4: Simplify right side
    127,848.60x = 8,365,384,285.61
  5. Step 5: Solve for x
    x = 8,365,384,285.61/127,848.60
  6. Step 6: Final answer
    x = 65,431.96

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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.