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Finding the Fourth Proportional to 65,708.70, 98,611.65 and 43,514.70

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Solution

The fourth proportional to 65,708.70, 98,611.65 and 43,514.70 is: 65,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.70 : 98,611.65 = 43,514.70 : x
  2. Step 2: Convert to fraction form
    65,708.70/98,611.65 = 43,514.70/x
  3. Step 3: Cross multiply
    65,708.70x = 98,611.65 × 43,514.70
  4. Step 4: Simplify right side
    65,708.70x = 4,291,056,366.26
  5. Step 5: Solve for x
    x = 4,291,056,366.26/65,708.70
  6. Step 6: Final answer
    x = 65,304.23

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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.