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Finding the Fourth Proportional to 352,761.42, 486,811.68 and 191,615.16

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Solution

The fourth proportional to 352,761.42, 486,811.68 and 191,615.16 is: 264,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,761.42 : 486,811.68 = 191,615.16 : x
  2. Step 2: Convert to fraction form
    352,761.42/486,811.68 = 191,615.16/x
  3. Step 3: Cross multiply
    352,761.42x = 486,811.68 × 191,615.16
  4. Step 4: Simplify right side
    352,761.42x = 93,280,494,560.93
  5. Step 5: Solve for x
    x = 93,280,494,560.93/352,761.42
  6. Step 6: Final answer
    x = 264,429.41

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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.