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Finding the Fourth Proportional to 80,445.80, 120,508.32 and 62,833.16

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Solution

The fourth proportional to 80,445.80, 120,508.32 and 62,833.16 is: 94,124.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.80 : 120,508.32 = 62,833.16 : x
  2. Step 2: Convert to fraction form
    80,445.80/120,508.32 = 62,833.16/x
  3. Step 3: Cross multiply
    80,445.80x = 120,508.32 × 62,833.16
  4. Step 4: Simplify right side
    80,445.80x = 7,571,918,551.89
  5. Step 5: Solve for x
    x = 7,571,918,551.89/80,445.80
  6. Step 6: Final answer
    x = 94,124.47

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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.