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Finding the Fourth Proportional to 68,578.72, 94,692.32 and 52,637.92

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Solution

The fourth proportional to 68,578.72, 94,692.32 and 52,637.92 is: 72,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.72 : 94,692.32 = 52,637.92 : x
  2. Step 2: Convert to fraction form
    68,578.72/94,692.32 = 52,637.92/x
  3. Step 3: Cross multiply
    68,578.72x = 94,692.32 × 52,637.92
  4. Step 4: Simplify right side
    68,578.72x = 4,984,406,764.77
  5. Step 5: Solve for x
    x = 4,984,406,764.77/68,578.72
  6. Step 6: Final answer
    x = 72,681.54

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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.