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Finding the Fourth Proportional to 79,199.84, 118,667.98 and 55,777.08

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Solution

The fourth proportional to 79,199.84, 118,667.98 and 55,777.08 is: 83,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,199.84 : 118,667.98 = 55,777.08 : x
  2. Step 2: Convert to fraction form
    79,199.84/118,667.98 = 55,777.08/x
  3. Step 3: Cross multiply
    79,199.84x = 118,667.98 × 55,777.08
  4. Step 4: Simplify right side
    79,199.84x = 6,618,953,413.90
  5. Step 5: Solve for x
    x = 6,618,953,413.90/79,199.84
  6. Step 6: Final answer
    x = 83,572.81

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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.