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Finding the Fourth Proportional to 53,917,903.60, 80,876,855.40 and 15,580,668.40

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Solution

The fourth proportional to 53,917,903.60, 80,876,855.40 and 15,580,668.40 is: 23,371,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917,903.60 : 80,876,855.40 = 15,580,668.40 : x
  2. Step 2: Convert to fraction form
    53,917,903.60/80,876,855.40 = 15,580,668.40/x
  3. Step 3: Cross multiply
    53,917,903.60x = 80,876,855.40 × 15,580,668.40
  4. Step 4: Simplify right side
    53,917,903.60x = 1,260,115,465,222,149.50
  5. Step 5: Solve for x
    x = 1,260,115,465,222,149.50/53,917,903.60
  6. Step 6: Final answer
    x = 23,371,002.60

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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.