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Finding the Fourth Proportional to 67,396.51, 92,965.96 and 43,189.32

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Solution

The fourth proportional to 67,396.51, 92,965.96 and 43,189.32 is: 59,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,396.51 : 92,965.96 = 43,189.32 : x
  2. Step 2: Convert to fraction form
    67,396.51/92,965.96 = 43,189.32/x
  3. Step 3: Cross multiply
    67,396.51x = 92,965.96 × 43,189.32
  4. Step 4: Simplify right side
    67,396.51x = 4,015,136,595.55
  5. Step 5: Solve for x
    x = 4,015,136,595.55/67,396.51
  6. Step 6: Final answer
    x = 59,574.84

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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.