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Finding the Fourth Proportional to 168,218.44, 252,373.02 and 55,916.80

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Solution

The fourth proportional to 168,218.44, 252,373.02 and 55,916.80 is: 83,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,218.44 : 252,373.02 = 55,916.80 : x
  2. Step 2: Convert to fraction form
    168,218.44/252,373.02 = 55,916.80/x
  3. Step 3: Cross multiply
    168,218.44x = 252,373.02 × 55,916.80
  4. Step 4: Simplify right side
    168,218.44x = 14,111,891,684.74
  5. Step 5: Solve for x
    x = 14,111,891,684.74/168,218.44
  6. Step 6: Final answer
    x = 83,890.28

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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.