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Finding the Fourth Proportional to 234,658.72, 323,831.44 and 127,228.96

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Solution

The fourth proportional to 234,658.72, 323,831.44 and 127,228.96 is: 175,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,658.72 : 323,831.44 = 127,228.96 : x
  2. Step 2: Convert to fraction form
    234,658.72/323,831.44 = 127,228.96/x
  3. Step 3: Cross multiply
    234,658.72x = 323,831.44 × 127,228.96
  4. Step 4: Simplify right side
    234,658.72x = 41,200,737,326.50
  5. Step 5: Solve for x
    x = 41,200,737,326.50/234,658.72
  6. Step 6: Final answer
    x = 175,577.27

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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.