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Finding the Fourth Proportional to 143,995.30, 215,984.88 and 44,155.22

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Solution

The fourth proportional to 143,995.30, 215,984.88 and 44,155.22 is: 66,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.30 : 215,984.88 = 44,155.22 : x
  2. Step 2: Convert to fraction form
    143,995.30/215,984.88 = 44,155.22/x
  3. Step 3: Cross multiply
    143,995.30x = 215,984.88 × 44,155.22
  4. Step 4: Simplify right side
    143,995.30x = 9,536,859,893.07
  5. Step 5: Solve for x
    x = 9,536,859,893.07/143,995.30
  6. Step 6: Final answer
    x = 66,230.36

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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.