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Finding the Fourth Proportional to 168,040.80, 252,061.20 and 152,488.80

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Solution

The fourth proportional to 168,040.80, 252,061.20 and 152,488.80 is: 228,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,040.80 : 252,061.20 = 152,488.80 : x
  2. Step 2: Convert to fraction form
    168,040.80/252,061.20 = 152,488.80/x
  3. Step 3: Cross multiply
    168,040.80x = 252,061.20 × 152,488.80
  4. Step 4: Simplify right side
    168,040.80x = 38,436,509,914.56
  5. Step 5: Solve for x
    x = 38,436,509,914.56/168,040.80
  6. Step 6: Final answer
    x = 228,733.20

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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.