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Finding the Fourth Proportional to 53,899.20, 80,695.20 and 52,363.20

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Solution

The fourth proportional to 53,899.20, 80,695.20 and 52,363.20 is: 78,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,899.20 : 80,695.20 = 52,363.20 : x
  2. Step 2: Convert to fraction form
    53,899.20/80,695.20 = 52,363.20/x
  3. Step 3: Cross multiply
    53,899.20x = 80,695.20 × 52,363.20
  4. Step 4: Simplify right side
    53,899.20x = 4,225,458,896.64
  5. Step 5: Solve for x
    x = 4,225,458,896.64/53,899.20
  6. Step 6: Final answer
    x = 78,395.58

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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.