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Finding the Fourth Proportional to 92,859.20, 139,236.50 and 29,664.48

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Solution

The fourth proportional to 92,859.20, 139,236.50 and 29,664.48 is: 44,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,859.20 : 139,236.50 = 29,664.48 : x
  2. Step 2: Convert to fraction form
    92,859.20/139,236.50 = 29,664.48/x
  3. Step 3: Cross multiply
    92,859.20x = 139,236.50 × 29,664.48
  4. Step 4: Simplify right side
    92,859.20x = 4,130,378,369.52
  5. Step 5: Solve for x
    x = 4,130,378,369.52/92,859.20
  6. Step 6: Final answer
    x = 44,480.01

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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.