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Finding the Fourth Proportional to 217,804,987.10, 326,707,480.65 and 217,804,987.10

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Solution

The fourth proportional to 217,804,987.10, 326,707,480.65 and 217,804,987.10 is: 326,707,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,804,987.10 : 326,707,480.65 = 217,804,987.10 : x
  2. Step 2: Convert to fraction form
    217,804,987.10/326,707,480.65 = 217,804,987.10/x
  3. Step 3: Cross multiply
    217,804,987.10x = 326,707,480.65 × 217,804,987.10
  4. Step 4: Simplify right side
    217,804,987.10x = 71,158,518,608,446,744
  5. Step 5: Solve for x
    x = 71,158,518,608,446,744/217,804,987.10
  6. Step 6: Final answer
    x = 326,707,480.65

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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.