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Finding the Fourth Proportional to 62,136.50, 85,798.91 and 50,653.19

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Solution

The fourth proportional to 62,136.50, 85,798.91 and 50,653.19 is: 69,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,136.50 : 85,798.91 = 50,653.19 : x
  2. Step 2: Convert to fraction form
    62,136.50/85,798.91 = 50,653.19/x
  3. Step 3: Cross multiply
    62,136.50x = 85,798.91 × 50,653.19
  4. Step 4: Simplify right side
    62,136.50x = 4,345,988,831.15
  5. Step 5: Solve for x
    x = 4,345,988,831.15/62,136.50
  6. Step 6: Final answer
    x = 69,942.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.