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Finding the Fourth Proportional to 143,758.64, 215,670.76 and 43,933.02

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Solution

The fourth proportional to 143,758.64, 215,670.76 and 43,933.02 is: 65,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,758.64 : 215,670.76 = 43,933.02 : x
  2. Step 2: Convert to fraction form
    143,758.64/215,670.76 = 43,933.02/x
  3. Step 3: Cross multiply
    143,758.64x = 215,670.76 × 43,933.02
  4. Step 4: Simplify right side
    143,758.64x = 9,475,067,812.50
  5. Step 5: Solve for x
    x = 9,475,067,812.50/143,758.64
  6. Step 6: Final answer
    x = 65,909.55

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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.