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Finding the Fourth Proportional to 168,929.74, 253,218.08 and 56,517.48

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Solution

The fourth proportional to 168,929.74, 253,218.08 and 56,517.48 is: 84,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,929.74 : 253,218.08 = 56,517.48 : x
  2. Step 2: Convert to fraction form
    168,929.74/253,218.08 = 56,517.48/x
  3. Step 3: Cross multiply
    168,929.74x = 253,218.08 × 56,517.48
  4. Step 4: Simplify right side
    168,929.74x = 14,311,247,772.04
  5. Step 5: Solve for x
    x = 14,311,247,772.04/168,929.74
  6. Step 6: Final answer
    x = 84,717.16

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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.