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Finding the Fourth Proportional to 174,155.32, 261,256.22 and 68,949.68

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Solution

The fourth proportional to 174,155.32, 261,256.22 and 68,949.68 is: 103,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,155.32 : 261,256.22 = 68,949.68 : x
  2. Step 2: Convert to fraction form
    174,155.32/261,256.22 = 68,949.68/x
  3. Step 3: Cross multiply
    174,155.32x = 261,256.22 × 68,949.68
  4. Step 4: Simplify right side
    174,155.32x = 18,013,532,422.26
  5. Step 5: Solve for x
    x = 18,013,532,422.26/174,155.32
  6. Step 6: Final answer
    x = 103,433.72

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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.