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Finding the Fourth Proportional to 163,831.76, 226,089.48 and 92,211.92

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Solution

The fourth proportional to 163,831.76, 226,089.48 and 92,211.92 is: 127,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,831.76 : 226,089.48 = 92,211.92 : x
  2. Step 2: Convert to fraction form
    163,831.76/226,089.48 = 92,211.92/x
  3. Step 3: Cross multiply
    163,831.76x = 226,089.48 × 92,211.92
  4. Step 4: Simplify right side
    163,831.76x = 20,848,145,042.60
  5. Step 5: Solve for x
    x = 20,848,145,042.60/163,831.76
  6. Step 6: Final answer
    x = 127,253.38

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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.