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Finding the Fourth Proportional to 118,340.20, 177,164.70 and 114,884.20

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Solution

The fourth proportional to 118,340.20, 177,164.70 and 114,884.20 is: 171,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,340.20 : 177,164.70 = 114,884.20 : x
  2. Step 2: Convert to fraction form
    118,340.20/177,164.70 = 114,884.20/x
  3. Step 3: Cross multiply
    118,340.20x = 177,164.70 × 114,884.20
  4. Step 4: Simplify right side
    118,340.20x = 20,353,424,827.74
  5. Step 5: Solve for x
    x = 20,353,424,827.74/118,340.20
  6. Step 6: Final answer
    x = 171,990.79

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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.