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Finding the Fourth Proportional to 325,191.48, 487,834.20 and 100,570.44

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Solution

The fourth proportional to 325,191.48, 487,834.20 and 100,570.44 is: 150,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,191.48 : 487,834.20 = 100,570.44 : x
  2. Step 2: Convert to fraction form
    325,191.48/487,834.20 = 100,570.44/x
  3. Step 3: Cross multiply
    325,191.48x = 487,834.20 × 100,570.44
  4. Step 4: Simplify right side
    325,191.48x = 49,061,700,141.05
  5. Step 5: Solve for x
    x = 49,061,700,141.05/325,191.48
  6. Step 6: Final answer
    x = 150,870.19

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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.