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Finding the Fourth Proportional to 39,864,081.60, 55,847,505.60 and 39,864,081.60

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Solution

The fourth proportional to 39,864,081.60, 55,847,505.60 and 39,864,081.60 is: 55,847,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864,081.60 : 55,847,505.60 = 39,864,081.60 : x
  2. Step 2: Convert to fraction form
    39,864,081.60/55,847,505.60 = 39,864,081.60/x
  3. Step 3: Cross multiply
    39,864,081.60x = 55,847,505.60 × 39,864,081.60
  4. Step 4: Simplify right side
    39,864,081.60x = 2,226,309,520,394,857
  5. Step 5: Solve for x
    x = 2,226,309,520,394,857/39,864,081.60
  6. Step 6: Final answer
    x = 55,847,505.60

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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.