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Finding the Fourth Proportional to 60,617.70, 90,931.11 and 16,243.47

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Solution

The fourth proportional to 60,617.70, 90,931.11 and 16,243.47 is: 24,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,617.70 : 90,931.11 = 16,243.47 : x
  2. Step 2: Convert to fraction form
    60,617.70/90,931.11 = 16,243.47/x
  3. Step 3: Cross multiply
    60,617.70x = 90,931.11 × 16,243.47
  4. Step 4: Simplify right side
    60,617.70x = 1,477,036,696.44
  5. Step 5: Solve for x
    x = 1,477,036,696.44/60,617.70
  6. Step 6: Final answer
    x = 24,366.43

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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.