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Finding the Fourth Proportional to 352,763.45, 486,814.48 and 191,617.19

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Solution

The fourth proportional to 352,763.45, 486,814.48 and 191,617.19 is: 264,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,763.45 : 486,814.48 = 191,617.19 : x
  2. Step 2: Convert to fraction form
    352,763.45/486,814.48 = 191,617.19/x
  3. Step 3: Cross multiply
    352,763.45x = 486,814.48 × 191,617.19
  4. Step 4: Simplify right side
    352,763.45x = 93,282,019,795.80
  5. Step 5: Solve for x
    x = 93,282,019,795.80/352,763.45
  6. Step 6: Final answer
    x = 264,432.22

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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.