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Finding the Fourth Proportional to 80,342,432.80, 112,734,497.60 and 80,342,432.80

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Solution

The fourth proportional to 80,342,432.80, 112,734,497.60 and 80,342,432.80 is: 112,734,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,342,432.80 : 112,734,497.60 = 80,342,432.80 : x
  2. Step 2: Convert to fraction form
    80,342,432.80/112,734,497.60 = 80,342,432.80/x
  3. Step 3: Cross multiply
    80,342,432.80x = 112,734,497.60 × 80,342,432.80
  4. Step 4: Simplify right side
    80,342,432.80x = 9,057,363,797,669,760
  5. Step 5: Solve for x
    x = 9,057,363,797,669,760/80,342,432.80
  6. Step 6: Final answer
    x = 112,734,497.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.