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Finding the Fourth Proportional to 217,209,743.90, 325,814,615.85 and 217,209,743.90

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Solution

The fourth proportional to 217,209,743.90, 325,814,615.85 and 217,209,743.90 is: 325,814,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,209,743.90 : 325,814,615.85 = 217,209,743.90 : x
  2. Step 2: Convert to fraction form
    217,209,743.90/325,814,615.85 = 217,209,743.90/x
  3. Step 3: Cross multiply
    217,209,743.90x = 325,814,615.85 × 217,209,743.90
  4. Step 4: Simplify right side
    217,209,743.90x = 70,770,109,267,655,384
  5. Step 5: Solve for x
    x = 70,770,109,267,655,384/217,209,743.90
  6. Step 6: Final answer
    x = 325,814,615.85

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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.