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Finding the Fourth Proportional to 181,413.68, 272,020.68 and 67,503.92

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Solution

The fourth proportional to 181,413.68, 272,020.68 and 67,503.92 is: 101,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,413.68 : 272,020.68 = 67,503.92 : x
  2. Step 2: Convert to fraction form
    181,413.68/272,020.68 = 67,503.92/x
  3. Step 3: Cross multiply
    181,413.68x = 272,020.68 × 67,503.92
  4. Step 4: Simplify right side
    181,413.68x = 18,362,462,221.07
  5. Step 5: Solve for x
    x = 18,362,462,221.07/181,413.68
  6. Step 6: Final answer
    x = 101,218.73

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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.