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Finding the Fourth Proportional to 143,652.84, 215,379.14 and 63,647.32

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Solution

The fourth proportional to 143,652.84, 215,379.14 and 63,647.32 is: 95,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,652.84 : 215,379.14 = 63,647.32 : x
  2. Step 2: Convert to fraction form
    143,652.84/215,379.14 = 63,647.32/x
  3. Step 3: Cross multiply
    143,652.84x = 215,379.14 × 63,647.32
  4. Step 4: Simplify right side
    143,652.84x = 13,708,305,044.90
  5. Step 5: Solve for x
    x = 13,708,305,044.90/143,652.84
  6. Step 6: Final answer
    x = 95,426.62

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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.