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Finding the Fourth Proportional to 67,418.78, 101,128.19 and 63,263.48

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Solution

The fourth proportional to 67,418.78, 101,128.19 and 63,263.48 is: 94,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,418.78 : 101,128.19 = 63,263.48 : x
  2. Step 2: Convert to fraction form
    67,418.78/101,128.19 = 63,263.48/x
  3. Step 3: Cross multiply
    67,418.78x = 101,128.19 × 63,263.48
  4. Step 4: Simplify right side
    67,418.78x = 6,397,720,403.54
  5. Step 5: Solve for x
    x = 6,397,720,403.54/67,418.78
  6. Step 6: Final answer
    x = 94,895.23

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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.