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Finding the Fourth Proportional to 352,685.46, 486,705.78 and 191,540.52

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Solution

The fourth proportional to 352,685.46, 486,705.78 and 191,540.52 is: 264,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,685.46 : 486,705.78 = 191,540.52 : x
  2. Step 2: Convert to fraction form
    352,685.46/486,705.78 = 191,540.52/x
  3. Step 3: Cross multiply
    352,685.46x = 486,705.78 × 191,540.52
  4. Step 4: Simplify right side
    352,685.46x = 93,223,878,188.21
  5. Step 5: Solve for x
    x = 93,223,878,188.21/352,685.46
  6. Step 6: Final answer
    x = 264,325.83

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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.