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Finding the Fourth Proportional to 39,613,563.60, 55,496,780.40 and 39,613,563.60

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Solution

The fourth proportional to 39,613,563.60, 55,496,780.40 and 39,613,563.60 is: 55,496,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613,563.60 : 55,496,780.40 = 39,613,563.60 : x
  2. Step 2: Convert to fraction form
    39,613,563.60/55,496,780.40 = 39,613,563.60/x
  3. Step 3: Cross multiply
    39,613,563.60x = 55,496,780.40 × 39,613,563.60
  4. Step 4: Simplify right side
    39,613,563.60x = 2,198,425,239,970,633.50
  5. Step 5: Solve for x
    x = 2,198,425,239,970,633.50/39,613,563.60
  6. Step 6: Final answer
    x = 55,496,780.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.