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Finding the Fourth Proportional to 79,282.50, 109,413.16 and 43,473.89

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Solution

The fourth proportional to 79,282.50, 109,413.16 and 43,473.89 is: 59,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,282.50 : 109,413.16 = 43,473.89 : x
  2. Step 2: Convert to fraction form
    79,282.50/109,413.16 = 43,473.89/x
  3. Step 3: Cross multiply
    79,282.50x = 109,413.16 × 43,473.89
  4. Step 4: Simplify right side
    79,282.50x = 4,756,615,026.64
  5. Step 5: Solve for x
    x = 4,756,615,026.64/79,282.50
  6. Step 6: Final answer
    x = 59,995.77

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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.