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Finding the Fourth Proportional to 119,610.51, 164,989.51 and 71,179.95

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Solution

The fourth proportional to 119,610.51, 164,989.51 and 71,179.95 is: 98,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,610.51 : 164,989.51 = 71,179.95 : x
  2. Step 2: Convert to fraction form
    119,610.51/164,989.51 = 71,179.95/x
  3. Step 3: Cross multiply
    119,610.51x = 164,989.51 × 71,179.95
  4. Step 4: Simplify right side
    119,610.51x = 11,743,944,585.02
  5. Step 5: Solve for x
    x = 11,743,944,585.02/119,610.51
  6. Step 6: Final answer
    x = 98,184.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.