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Finding the Fourth Proportional to 80,994.47, 111,772.04 and 45,184.46

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Solution

The fourth proportional to 80,994.47, 111,772.04 and 45,184.46 is: 62,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,994.47 : 111,772.04 = 45,184.46 : x
  2. Step 2: Convert to fraction form
    80,994.47/111,772.04 = 45,184.46/x
  3. Step 3: Cross multiply
    80,994.47x = 111,772.04 × 45,184.46
  4. Step 4: Simplify right side
    80,994.47x = 5,050,358,485.72
  5. Step 5: Solve for x
    x = 5,050,358,485.72/80,994.47
  6. Step 6: Final answer
    x = 62,354.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.