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Finding the Fourth Proportional to 143,344.44, 215,024.88 and 43,507.90

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Solution

The fourth proportional to 143,344.44, 215,024.88 and 43,507.90 is: 65,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,344.44 : 215,024.88 = 43,507.90 : x
  2. Step 2: Convert to fraction form
    143,344.44/215,024.88 = 43,507.90/x
  3. Step 3: Cross multiply
    143,344.44x = 215,024.88 × 43,507.90
  4. Step 4: Simplify right side
    143,344.44x = 9,355,280,976.55
  5. Step 5: Solve for x
    x = 9,355,280,976.55/143,344.44
  6. Step 6: Final answer
    x = 65,264.34

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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.