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Finding the Fourth Proportional to 427,113.91, 589,391.89 and 236,115.91

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Solution

The fourth proportional to 427,113.91, 589,391.89 and 236,115.91 is: 325,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,113.91 : 589,391.89 = 236,115.91 : x
  2. Step 2: Convert to fraction form
    427,113.91/589,391.89 = 236,115.91/x
  3. Step 3: Cross multiply
    427,113.91x = 589,391.89 × 236,115.91
  4. Step 4: Simplify right side
    427,113.91x = 139,164,802,600.42
  5. Step 5: Solve for x
    x = 139,164,802,600.42/427,113.91
  6. Step 6: Final answer
    x = 325,825.97

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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.