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Finding the Fourth Proportional to 453,395.22, 680,130.89 and 137,854.86

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Solution

The fourth proportional to 453,395.22, 680,130.89 and 137,854.86 is: 206,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,395.22 : 680,130.89 = 137,854.86 : x
  2. Step 2: Convert to fraction form
    453,395.22/680,130.89 = 137,854.86/x
  3. Step 3: Cross multiply
    453,395.22x = 680,130.89 × 137,854.86
  4. Step 4: Simplify right side
    453,395.22x = 93,759,347,933.35
  5. Step 5: Solve for x
    x = 93,759,347,933.35/453,395.22
  6. Step 6: Final answer
    x = 206,793.86

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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.