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Finding the Fourth Proportional to 67,270,532.80, 100,693,222.80 and 52,815,337.60

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Solution

The fourth proportional to 67,270,532.80, 100,693,222.80 and 52,815,337.60 is: 79,056,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,270,532.80 : 100,693,222.80 = 52,815,337.60 : x
  2. Step 2: Convert to fraction form
    67,270,532.80/100,693,222.80 = 52,815,337.60/x
  3. Step 3: Cross multiply
    67,270,532.80x = 100,693,222.80 × 52,815,337.60
  4. Step 4: Simplify right side
    67,270,532.80x = 5,318,146,556,214,017
  5. Step 5: Solve for x
    x = 5,318,146,556,214,017/67,270,532.80
  6. Step 6: Final answer
    x = 79,056,108.74

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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.