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Finding the Fourth Proportional to 168,029.80, 252,044.70 and 155,199.40

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Solution

The fourth proportional to 168,029.80, 252,044.70 and 155,199.40 is: 232,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,029.80 : 252,044.70 = 155,199.40 : x
  2. Step 2: Convert to fraction form
    168,029.80/252,044.70 = 155,199.40/x
  3. Step 3: Cross multiply
    168,029.80x = 252,044.70 × 155,199.40
  4. Step 4: Simplify right side
    168,029.80x = 39,117,186,213.18
  5. Step 5: Solve for x
    x = 39,117,186,213.18/168,029.80
  6. Step 6: Final answer
    x = 232,799.10

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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.