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Finding the Fourth Proportional to 143,759.64, 215,672.26 and 43,934.02

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Solution

The fourth proportional to 143,759.64, 215,672.26 and 43,934.02 is: 65,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,759.64 : 215,672.26 = 43,934.02 : x
  2. Step 2: Convert to fraction form
    143,759.64/215,672.26 = 43,934.02/x
  3. Step 3: Cross multiply
    143,759.64x = 215,672.26 × 43,934.02
  4. Step 4: Simplify right side
    143,759.64x = 9,475,349,384.29
  5. Step 5: Solve for x
    x = 9,475,349,384.29/143,759.64
  6. Step 6: Final answer
    x = 65,911.05

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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.