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Finding the Fourth Proportional to 143,794.92, 215,626.28 and 48,986.52

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Solution

The fourth proportional to 143,794.92, 215,626.28 and 48,986.52 is: 73,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,794.92 : 215,626.28 = 48,986.52 : x
  2. Step 2: Convert to fraction form
    143,794.92/215,626.28 = 48,986.52/x
  3. Step 3: Cross multiply
    143,794.92x = 215,626.28 × 48,986.52
  4. Step 4: Simplify right side
    143,794.92x = 10,562,781,077.75
  5. Step 5: Solve for x
    x = 10,562,781,077.75/143,794.92
  6. Step 6: Final answer
    x = 73,457.26

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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.