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Finding the Fourth Proportional to 179,990.99, 248,366.27 and 99,413.71

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Solution

The fourth proportional to 179,990.99, 248,366.27 and 99,413.71 is: 137,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,990.99 : 248,366.27 = 99,413.71 : x
  2. Step 2: Convert to fraction form
    179,990.99/248,366.27 = 99,413.71/x
  3. Step 3: Cross multiply
    179,990.99x = 248,366.27 × 99,413.71
  4. Step 4: Simplify right side
    179,990.99x = 24,691,011,967.18
  5. Step 5: Solve for x
    x = 24,691,011,967.18/179,990.99
  6. Step 6: Final answer
    x = 137,179.16

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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.