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Finding the Fourth Proportional to 168,487,224.80, 252,226,952.40 and 100,294,815.20

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Solution

The fourth proportional to 168,487,224.80, 252,226,952.40 and 100,294,815.20 is: 150,142,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,487,224.80 : 252,226,952.40 = 100,294,815.20 : x
  2. Step 2: Convert to fraction form
    168,487,224.80/252,226,952.40 = 100,294,815.20/x
  3. Step 3: Cross multiply
    168,487,224.80x = 252,226,952.40 × 100,294,815.20
  4. Step 4: Simplify right side
    168,487,224.80x = 25,297,055,579,417,196
  5. Step 5: Solve for x
    x = 25,297,055,579,417,196/168,487,224.80
  6. Step 6: Final answer
    x = 150,142,277.02

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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.