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Finding the Fourth Proportional to 168,378.57, 232,363.67 and 91,898.19

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Solution

The fourth proportional to 168,378.57, 232,363.67 and 91,898.19 is: 126,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,378.57 : 232,363.67 = 91,898.19 : x
  2. Step 2: Convert to fraction form
    168,378.57/232,363.67 = 91,898.19/x
  3. Step 3: Cross multiply
    168,378.57x = 232,363.67 × 91,898.19
  4. Step 4: Simplify right side
    168,378.57x = 21,353,800,235.27
  5. Step 5: Solve for x
    x = 21,353,800,235.27/168,378.57
  6. Step 6: Final answer
    x = 126,820.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.