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Finding the Fourth Proportional to 118,027.86, 176,831.88 and 68,004.60

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Solution

The fourth proportional to 118,027.86, 176,831.88 and 68,004.60 is: 101,885.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,027.86 : 176,831.88 = 68,004.60 : x
  2. Step 2: Convert to fraction form
    118,027.86/176,831.88 = 68,004.60/x
  3. Step 3: Cross multiply
    118,027.86x = 176,831.88 × 68,004.60
  4. Step 4: Simplify right side
    118,027.86x = 12,025,381,266.65
  5. Step 5: Solve for x
    x = 12,025,381,266.65/118,027.86
  6. Step 6: Final answer
    x = 101,885.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.