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Finding the Fourth Proportional to 65,669.52, 98,475.80 and 36,078.48

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Solution

The fourth proportional to 65,669.52, 98,475.80 and 36,078.48 is: 54,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,669.52 : 98,475.80 = 36,078.48 : x
  2. Step 2: Convert to fraction form
    65,669.52/98,475.80 = 36,078.48/x
  3. Step 3: Cross multiply
    65,669.52x = 98,475.80 × 36,078.48
  4. Step 4: Simplify right side
    65,669.52x = 3,552,857,180.78
  5. Step 5: Solve for x
    x = 3,552,857,180.78/65,669.52
  6. Step 6: Final answer
    x = 54,102.07

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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.