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Finding the Fourth Proportional to 143,659.52, 215,512.08 and 43,796.84

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Solution

The fourth proportional to 143,659.52, 215,512.08 and 43,796.84 is: 65,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659.52 : 215,512.08 = 43,796.84 : x
  2. Step 2: Convert to fraction form
    143,659.52/215,512.08 = 43,796.84/x
  3. Step 3: Cross multiply
    143,659.52x = 215,512.08 × 43,796.84
  4. Step 4: Simplify right side
    143,659.52x = 9,438,748,085.83
  5. Step 5: Solve for x
    x = 9,438,748,085.83/143,659.52
  6. Step 6: Final answer
    x = 65,702.21

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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.