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Finding the Fourth Proportional to 168,019,660.80, 251,730,892.80 and 144,131,788.80

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Solution

The fourth proportional to 168,019,660.80, 251,730,892.80 and 144,131,788.80 is: 215,941,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019,660.80 : 251,730,892.80 = 144,131,788.80 : x
  2. Step 2: Convert to fraction form
    168,019,660.80/251,730,892.80 = 144,131,788.80/x
  3. Step 3: Cross multiply
    168,019,660.80x = 251,730,892.80 × 144,131,788.80
  4. Step 4: Simplify right side
    168,019,660.80x = 36,282,423,875,485,048
  5. Step 5: Solve for x
    x = 36,282,423,875,485,048/168,019,660.80
  6. Step 6: Final answer
    x = 215,941,537.45

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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.