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Finding the Fourth Proportional to 363,070.86, 544,231.04 and 138,370.98

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Solution

The fourth proportional to 363,070.86, 544,231.04 and 138,370.98 is: 207,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,070.86 : 544,231.04 = 138,370.98 : x
  2. Step 2: Convert to fraction form
    363,070.86/544,231.04 = 138,370.98/x
  3. Step 3: Cross multiply
    363,070.86x = 544,231.04 × 138,370.98
  4. Step 4: Simplify right side
    363,070.86x = 75,305,781,659.36
  5. Step 5: Solve for x
    x = 75,305,781,659.36/363,070.86
  6. Step 6: Final answer
    x = 207,413.46

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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.