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Finding the Fourth Proportional to 352,705.59, 486,737.22 and 191,563.78

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Solution

The fourth proportional to 352,705.59, 486,737.22 and 191,563.78 is: 264,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,705.59 : 486,737.22 = 191,563.78 : x
  2. Step 2: Convert to fraction form
    352,705.59/486,737.22 = 191,563.78/x
  3. Step 3: Cross multiply
    352,705.59x = 486,737.22 × 191,563.78
  4. Step 4: Simplify right side
    352,705.59x = 93,241,221,729.89
  5. Step 5: Solve for x
    x = 93,241,221,729.89/352,705.59
  6. Step 6: Final answer
    x = 264,359.92

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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.