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Finding the Fourth Proportional to 143,697.92, 215,538.71 and 43,850.16

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Solution

The fourth proportional to 143,697.92, 215,538.71 and 43,850.16 is: 65,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,697.92 : 215,538.71 = 43,850.16 : x
  2. Step 2: Convert to fraction form
    143,697.92/215,538.71 = 43,850.16/x
  3. Step 3: Cross multiply
    143,697.92x = 215,538.71 × 43,850.16
  4. Step 4: Simplify right side
    143,697.92x = 9,451,406,700.44
  5. Step 5: Solve for x
    x = 9,451,406,700.44/143,697.92
  6. Step 6: Final answer
    x = 65,772.75

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1.5x scale

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.