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Finding the Fourth Proportional to 114,231.71, 157,639.74 and 63,930.71

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Solution

The fourth proportional to 114,231.71, 157,639.74 and 63,930.71 is: 88,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,231.71 : 157,639.74 = 63,930.71 : x
  2. Step 2: Convert to fraction form
    114,231.71/157,639.74 = 63,930.71/x
  3. Step 3: Cross multiply
    114,231.71x = 157,639.74 × 63,930.71
  4. Step 4: Simplify right side
    114,231.71x = 10,078,020,502.42
  5. Step 5: Solve for x
    x = 10,078,020,502.42/114,231.71
  6. Step 6: Final answer
    x = 88,224.37

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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.