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Finding the Fourth Proportional to 79,692.66, 109,964.18 and 45,232.07

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Solution

The fourth proportional to 79,692.66, 109,964.18 and 45,232.07 is: 62,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,692.66 : 109,964.18 = 45,232.07 : x
  2. Step 2: Convert to fraction form
    79,692.66/109,964.18 = 45,232.07/x
  3. Step 3: Cross multiply
    79,692.66x = 109,964.18 × 45,232.07
  4. Step 4: Simplify right side
    79,692.66x = 4,973,907,669.06
  5. Step 5: Solve for x
    x = 4,973,907,669.06/79,692.66
  6. Step 6: Final answer
    x = 62,413.62

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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.