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Finding the Fourth Proportional to 62,422.80, 93,634.20 and 53,869.20

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Solution

The fourth proportional to 62,422.80, 93,634.20 and 53,869.20 is: 80,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,422.80 : 93,634.20 = 53,869.20 : x
  2. Step 2: Convert to fraction form
    62,422.80/93,634.20 = 53,869.20/x
  3. Step 3: Cross multiply
    62,422.80x = 93,634.20 × 53,869.20
  4. Step 4: Simplify right side
    62,422.80x = 5,043,999,446.64
  5. Step 5: Solve for x
    x = 5,043,999,446.64/62,422.80
  6. Step 6: Final answer
    x = 80,803.80

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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.