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Finding the Fourth Proportional to 101,595.86, 140,270.79 and 63,413.57

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Solution

The fourth proportional to 101,595.86, 140,270.79 and 63,413.57 is: 87,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,595.86 : 140,270.79 = 63,413.57 : x
  2. Step 2: Convert to fraction form
    101,595.86/140,270.79 = 63,413.57/x
  3. Step 3: Cross multiply
    101,595.86x = 140,270.79 × 63,413.57
  4. Step 4: Simplify right side
    101,595.86x = 8,895,070,542.20
  5. Step 5: Solve for x
    x = 8,895,070,542.20/101,595.86
  6. Step 6: Final answer
    x = 87,553.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.