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Finding the Fourth Proportional to 92,738.64, 139,025.88 and 40,119.42

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Solution

The fourth proportional to 92,738.64, 139,025.88 and 40,119.42 is: 60,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,738.64 : 139,025.88 = 40,119.42 : x
  2. Step 2: Convert to fraction form
    92,738.64/139,025.88 = 40,119.42/x
  3. Step 3: Cross multiply
    92,738.64x = 139,025.88 × 40,119.42
  4. Step 4: Simplify right side
    92,738.64x = 5,577,637,670.59
  5. Step 5: Solve for x
    x = 5,577,637,670.59/92,738.64
  6. Step 6: Final answer
    x = 60,143.62

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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.