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Finding the Fourth Proportional to 167,817.97, 251,491.83 and 83,498.20

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Solution

The fourth proportional to 167,817.97, 251,491.83 and 83,498.20 is: 125,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,817.97 : 251,491.83 = 83,498.20 : x
  2. Step 2: Convert to fraction form
    167,817.97/251,491.83 = 83,498.20/x
  3. Step 3: Cross multiply
    167,817.97x = 251,491.83 × 83,498.20
  4. Step 4: Simplify right side
    167,817.97x = 20,999,115,119.71
  5. Step 5: Solve for x
    x = 20,999,115,119.71/167,817.97
  6. Step 6: Final answer
    x = 125,130.31

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1.5x scale

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.