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Finding the Fourth Proportional to 267,320.01, 401,069.54 and 87,413.74

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Solution

The fourth proportional to 267,320.01, 401,069.54 and 87,413.74 is: 131,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,320.01 : 401,069.54 = 87,413.74 : x
  2. Step 2: Convert to fraction form
    267,320.01/401,069.54 = 87,413.74/x
  3. Step 3: Cross multiply
    267,320.01x = 401,069.54 × 87,413.74
  4. Step 4: Simplify right side
    267,320.01x = 35,058,986,267.60
  5. Step 5: Solve for x
    x = 35,058,986,267.60/267,320.01
  6. Step 6: Final answer
    x = 131,149.88

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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.