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Finding the Fourth Proportional to 71,535.34, 98,721.35 and 43,224.63

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Solution

The fourth proportional to 71,535.34, 98,721.35 and 43,224.63 is: 59,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,535.34 : 98,721.35 = 43,224.63 : x
  2. Step 2: Convert to fraction form
    71,535.34/98,721.35 = 43,224.63/x
  3. Step 3: Cross multiply
    71,535.34x = 98,721.35 × 43,224.63
  4. Step 4: Simplify right side
    71,535.34x = 4,267,193,826.85
  5. Step 5: Solve for x
    x = 4,267,193,826.85/71,535.34
  6. Step 6: Final answer
    x = 59,651.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.