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Finding the Fourth Proportional to 103,692.40, 154,729.60 and 92,522.32

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Solution

The fourth proportional to 103,692.40, 154,729.60 and 92,522.32 is: 138,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,692.40 : 154,729.60 = 92,522.32 : x
  2. Step 2: Convert to fraction form
    103,692.40/154,729.60 = 92,522.32/x
  3. Step 3: Cross multiply
    103,692.40x = 154,729.60 × 92,522.32
  4. Step 4: Simplify right side
    103,692.40x = 14,315,941,564.67
  5. Step 5: Solve for x
    x = 14,315,941,564.67/103,692.40
  6. Step 6: Final answer
    x = 138,061.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.