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Finding the Fourth Proportional to 74,692.76, 103,075.68 and 40,701.12

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Solution

The fourth proportional to 74,692.76, 103,075.68 and 40,701.12 is: 56,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,692.76 : 103,075.68 = 40,701.12 : x
  2. Step 2: Convert to fraction form
    74,692.76/103,075.68 = 40,701.12/x
  3. Step 3: Cross multiply
    74,692.76x = 103,075.68 × 40,701.12
  4. Step 4: Simplify right side
    74,692.76x = 4,195,295,620.76
  5. Step 5: Solve for x
    x = 4,195,295,620.76/74,692.76
  6. Step 6: Final answer
    x = 56,167.37

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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.