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Finding the Fourth Proportional to 88,662.83, 122,354.66 and 56,831.70

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Solution

The fourth proportional to 88,662.83, 122,354.66 and 56,831.70 is: 78,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,662.83 : 122,354.66 = 56,831.70 : x
  2. Step 2: Convert to fraction form
    88,662.83/122,354.66 = 56,831.70/x
  3. Step 3: Cross multiply
    88,662.83x = 122,354.66 × 56,831.70
  4. Step 4: Simplify right side
    88,662.83x = 6,953,623,046.56
  5. Step 5: Solve for x
    x = 6,953,623,046.56/88,662.83
  6. Step 6: Final answer
    x = 78,427.71

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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.