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Finding the Fourth Proportional to 73,247.84, 109,692.56 and 66,148.11

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Solution

The fourth proportional to 73,247.84, 109,692.56 and 66,148.11 is: 99,060.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,247.84 : 109,692.56 = 66,148.11 : x
  2. Step 2: Convert to fraction form
    73,247.84/109,692.56 = 66,148.11/x
  3. Step 3: Cross multiply
    73,247.84x = 109,692.56 × 66,148.11
  4. Step 4: Simplify right side
    73,247.84x = 7,255,955,690.43
  5. Step 5: Solve for x
    x = 7,255,955,690.43/73,247.84
  6. Step 6: Final answer
    x = 99,060.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.