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Finding the Fourth Proportional to 168,021.20, 252,055.80 and 49,677.20

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Solution

The fourth proportional to 168,021.20, 252,055.80 and 49,677.20 is: 74,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.20 : 252,055.80 = 49,677.20 : x
  2. Step 2: Convert to fraction form
    168,021.20/252,055.80 = 49,677.20/x
  3. Step 3: Cross multiply
    168,021.20x = 252,055.80 × 49,677.20
  4. Step 4: Simplify right side
    168,021.20x = 12,521,426,387.76
  5. Step 5: Solve for x
    x = 12,521,426,387.76/168,021.20
  6. Step 6: Final answer
    x = 74,522.90

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1.5x scale

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.