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Finding the Fourth Proportional to 54,447,793.80, 81,671,690.70 and 48,495,654.60

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Solution

The fourth proportional to 54,447,793.80, 81,671,690.70 and 48,495,654.60 is: 72,743,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,447,793.80 : 81,671,690.70 = 48,495,654.60 : x
  2. Step 2: Convert to fraction form
    54,447,793.80/81,671,690.70 = 48,495,654.60/x
  3. Step 3: Cross multiply
    54,447,793.80x = 81,671,690.70 × 48,495,654.60
  4. Step 4: Simplify right side
    54,447,793.80x = 3,960,722,102,785,232.50
  5. Step 5: Solve for x
    x = 3,960,722,102,785,232.50/54,447,793.80
  6. Step 6: Final answer
    x = 72,743,481.90

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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.