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Finding the Fourth Proportional to 118,178.98, 177,161.84 and 43,246.89

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Solution

The fourth proportional to 118,178.98, 177,161.84 and 43,246.89 is: 64,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,178.98 : 177,161.84 = 43,246.89 : x
  2. Step 2: Convert to fraction form
    118,178.98/177,161.84 = 43,246.89/x
  3. Step 3: Cross multiply
    118,178.98x = 177,161.84 × 43,246.89
  4. Step 4: Simplify right side
    118,178.98x = 7,661,698,606.68
  5. Step 5: Solve for x
    x = 7,661,698,606.68/118,178.98
  6. Step 6: Final answer
    x = 64,831.32

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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.