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Finding the Fourth Proportional to 122,413.68, 183,654.81 and 43,535.88

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Solution

The fourth proportional to 122,413.68, 183,654.81 and 43,535.88 is: 65,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,413.68 : 183,654.81 = 43,535.88 : x
  2. Step 2: Convert to fraction form
    122,413.68/183,654.81 = 43,535.88/x
  3. Step 3: Cross multiply
    122,413.68x = 183,654.81 × 43,535.88
  4. Step 4: Simplify right side
    122,413.68x = 7,995,573,769.58
  5. Step 5: Solve for x
    x = 7,995,573,769.58/122,413.68
  6. Step 6: Final answer
    x = 65,316.02

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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.