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Finding the Fourth Proportional to 65,743.80, 98,615.70 and 46,060.80

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Solution

The fourth proportional to 65,743.80, 98,615.70 and 46,060.80 is: 69,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,743.80 : 98,615.70 = 46,060.80 : x
  2. Step 2: Convert to fraction form
    65,743.80/98,615.70 = 46,060.80/x
  3. Step 3: Cross multiply
    65,743.80x = 98,615.70 × 46,060.80
  4. Step 4: Simplify right side
    65,743.80x = 4,542,318,034.56
  5. Step 5: Solve for x
    x = 4,542,318,034.56/65,743.80
  6. Step 6: Final answer
    x = 69,091.20

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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.