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Finding the Fourth Proportional to 109,197.40, 150,692.10 and 61,450.76

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Solution

The fourth proportional to 109,197.40, 150,692.10 and 61,450.76 is: 84,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,197.40 : 150,692.10 = 61,450.76 : x
  2. Step 2: Convert to fraction form
    109,197.40/150,692.10 = 61,450.76/x
  3. Step 3: Cross multiply
    109,197.40x = 150,692.10 × 61,450.76
  4. Step 4: Simplify right side
    109,197.40x = 9,260,144,071.00
  5. Step 5: Solve for x
    x = 9,260,144,071.00/109,197.40
  6. Step 6: Final answer
    x = 84,801.87

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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.