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Finding the Fourth Proportional to 219,027,609.20, 328,541,413.80 and 57,485,874.80

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Solution

The fourth proportional to 219,027,609.20, 328,541,413.80 and 57,485,874.80 is: 86,228,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,027,609.20 : 328,541,413.80 = 57,485,874.80 : x
  2. Step 2: Convert to fraction form
    219,027,609.20/328,541,413.80 = 57,485,874.80/x
  3. Step 3: Cross multiply
    219,027,609.20x = 328,541,413.80 × 57,485,874.80
  4. Step 4: Simplify right side
    219,027,609.20x = 18,886,490,580,321,792
  5. Step 5: Solve for x
    x = 18,886,490,580,321,792/219,027,609.20
  6. Step 6: Final answer
    x = 86,228,812.20

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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.