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Finding the Fourth Proportional to 74,692.52, 103,075.69 and 40,701.02

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Solution

The fourth proportional to 74,692.52, 103,075.69 and 40,701.02 is: 56,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,692.52 : 103,075.69 = 40,701.02 : x
  2. Step 2: Convert to fraction form
    74,692.52/103,075.69 = 40,701.02/x
  3. Step 3: Cross multiply
    74,692.52x = 103,075.69 × 40,701.02
  4. Step 4: Simplify right side
    74,692.52x = 4,195,285,204.83
  5. Step 5: Solve for x
    x = 4,195,285,204.83/74,692.52
  6. Step 6: Final answer
    x = 56,167.41

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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.