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Finding the Fourth Proportional to 168,197,207.40, 252,295,811.10 and 168,197,207.40

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Solution

The fourth proportional to 168,197,207.40, 252,295,811.10 and 168,197,207.40 is: 252,295,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,197,207.40 : 252,295,811.10 = 168,197,207.40 : x
  2. Step 2: Convert to fraction form
    168,197,207.40/252,295,811.10 = 168,197,207.40/x
  3. Step 3: Cross multiply
    168,197,207.40x = 252,295,811.10 × 168,197,207.40
  4. Step 4: Simplify right side
    168,197,207.40x = 42,435,450,865,737,920
  5. Step 5: Solve for x
    x = 42,435,450,865,737,920/168,197,207.40
  6. Step 6: Final answer
    x = 252,295,811.10

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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.