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Finding the Fourth Proportional to 164,851.20, 247,276.80 and 114,112.80

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Solution

The fourth proportional to 164,851.20, 247,276.80 and 114,112.80 is: 171,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,851.20 : 247,276.80 = 114,112.80 : x
  2. Step 2: Convert to fraction form
    164,851.20/247,276.80 = 114,112.80/x
  3. Step 3: Cross multiply
    164,851.20x = 247,276.80 × 114,112.80
  4. Step 4: Simplify right side
    164,851.20x = 28,217,448,023.04
  5. Step 5: Solve for x
    x = 28,217,448,023.04/164,851.20
  6. Step 6: Final answer
    x = 171,169.20

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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.