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Finding the Fourth Proportional to 65,435.52, 98,024.79 and 43,180.97

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Solution

The fourth proportional to 65,435.52, 98,024.79 and 43,180.97 is: 64,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,435.52 : 98,024.79 = 43,180.97 : x
  2. Step 2: Convert to fraction form
    65,435.52/98,024.79 = 43,180.97/x
  3. Step 3: Cross multiply
    65,435.52x = 98,024.79 × 43,180.97
  4. Step 4: Simplify right side
    65,435.52x = 4,232,805,516.25
  5. Step 5: Solve for x
    x = 4,232,805,516.25/65,435.52
  6. Step 6: Final answer
    x = 64,686.66

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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.