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Finding the Fourth Proportional to 84,572,489.80, 126,858,734.70 and 59,063,321.80

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Solution

The fourth proportional to 84,572,489.80, 126,858,734.70 and 59,063,321.80 is: 88,594,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,572,489.80 : 126,858,734.70 = 59,063,321.80 : x
  2. Step 2: Convert to fraction form
    84,572,489.80/126,858,734.70 = 59,063,321.80/x
  3. Step 3: Cross multiply
    84,572,489.80x = 126,858,734.70 × 59,063,321.80
  4. Step 4: Simplify right side
    84,572,489.80x = 7,492,698,270,726,926
  5. Step 5: Solve for x
    x = 7,492,698,270,726,926/84,572,489.80
  6. Step 6: Final answer
    x = 88,594,982.70

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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.