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Finding the Fourth Proportional to 67,648.80, 101,362.36 and 36,025.28

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Solution

The fourth proportional to 67,648.80, 101,362.36 and 36,025.28 is: 53,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,648.80 : 101,362.36 = 36,025.28 : x
  2. Step 2: Convert to fraction form
    67,648.80/101,362.36 = 36,025.28/x
  3. Step 3: Cross multiply
    67,648.80x = 101,362.36 × 36,025.28
  4. Step 4: Simplify right side
    67,648.80x = 3,651,607,400.46
  5. Step 5: Solve for x
    x = 3,651,607,400.46/67,648.80
  6. Step 6: Final answer
    x = 53,978.89

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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.