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Finding the Fourth Proportional to 535,771.44, 803,644.20 and 136,413.12

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Solution

The fourth proportional to 535,771.44, 803,644.20 and 136,413.12 is: 204,616.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,771.44 : 803,644.20 = 136,413.12 : x
  2. Step 2: Convert to fraction form
    535,771.44/803,644.20 = 136,413.12/x
  3. Step 3: Cross multiply
    535,771.44x = 803,644.20 × 136,413.12
  4. Step 4: Simplify right side
    535,771.44x = 109,627,612,691.90
  5. Step 5: Solve for x
    x = 109,627,612,691.90/535,771.44
  6. Step 6: Final answer
    x = 204,616.38

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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.