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Finding the Fourth Proportional to 111,973.73, 167,959.55 and 45,398.03

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Solution

The fourth proportional to 111,973.73, 167,959.55 and 45,398.03 is: 68,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,973.73 : 167,959.55 = 45,398.03 : x
  2. Step 2: Convert to fraction form
    111,973.73/167,959.55 = 45,398.03/x
  3. Step 3: Cross multiply
    111,973.73x = 167,959.55 × 45,398.03
  4. Step 4: Simplify right side
    111,973.73x = 7,625,032,689.69
  5. Step 5: Solve for x
    x = 7,625,032,689.69/111,973.73
  6. Step 6: Final answer
    x = 68,096.62

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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.