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Finding the Fourth Proportional to 79,791.71, 110,110.59 and 43,980.93

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Solution

The fourth proportional to 79,791.71, 110,110.59 and 43,980.93 is: 60,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791.71 : 110,110.59 = 43,980.93 : x
  2. Step 2: Convert to fraction form
    79,791.71/110,110.59 = 43,980.93/x
  3. Step 3: Cross multiply
    79,791.71x = 110,110.59 × 43,980.93
  4. Step 4: Simplify right side
    79,791.71x = 4,842,766,151.05
  5. Step 5: Solve for x
    x = 4,842,766,151.05/79,791.71
  6. Step 6: Final answer
    x = 60,692.60

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1.5x scale

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.