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Finding the Fourth Proportional to 321,413.13, 482,151.96 and 119,063.72

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Solution

The fourth proportional to 321,413.13, 482,151.96 and 119,063.72 is: 178,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,413.13 : 482,151.96 = 119,063.72 : x
  2. Step 2: Convert to fraction form
    321,413.13/482,151.96 = 119,063.72/x
  3. Step 3: Cross multiply
    321,413.13x = 482,151.96 × 119,063.72
  4. Step 4: Simplify right side
    321,413.13x = 57,406,807,168.27
  5. Step 5: Solve for x
    x = 57,406,807,168.27/321,413.13
  6. Step 6: Final answer
    x = 178,607.54

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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.