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Finding the Fourth Proportional to 168,248,751.20, 252,373,126.80 and 168,248,751.20

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Solution

The fourth proportional to 168,248,751.20, 252,373,126.80 and 168,248,751.20 is: 252,373,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,248,751.20 : 252,373,126.80 = 168,248,751.20 : x
  2. Step 2: Convert to fraction form
    168,248,751.20/252,373,126.80 = 168,248,751.20/x
  3. Step 3: Cross multiply
    168,248,751.20x = 252,373,126.80 × 168,248,751.20
  4. Step 4: Simplify right side
    168,248,751.20x = 42,461,463,420,539,248
  5. Step 5: Solve for x
    x = 42,461,463,420,539,248/168,248,751.20
  6. Step 6: Final answer
    x = 252,373,126.80

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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.