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Finding the Fourth Proportional to 168,496,719.10, 252,745,078.65 and 168,496,719.10

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Solution

The fourth proportional to 168,496,719.10, 252,745,078.65 and 168,496,719.10 is: 252,745,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,496,719.10 : 252,745,078.65 = 168,496,719.10 : x
  2. Step 2: Convert to fraction form
    168,496,719.10/252,745,078.65 = 168,496,719.10/x
  3. Step 3: Cross multiply
    168,496,719.10x = 252,745,078.65 × 168,496,719.10
  4. Step 4: Simplify right side
    168,496,719.10x = 42,586,716,521,196,456
  5. Step 5: Solve for x
    x = 42,586,716,521,196,456/168,496,719.10
  6. Step 6: Final answer
    x = 252,745,078.65

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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.