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Finding the Fourth Proportional to 148,371.80, 204,767.73 and 84,719.16

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Solution

The fourth proportional to 148,371.80, 204,767.73 and 84,719.16 is: 116,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,371.80 : 204,767.73 = 84,719.16 : x
  2. Step 2: Convert to fraction form
    148,371.80/204,767.73 = 84,719.16/x
  3. Step 3: Cross multiply
    148,371.80x = 204,767.73 × 84,719.16
  4. Step 4: Simplify right side
    148,371.80x = 17,347,750,080.71
  5. Step 5: Solve for x
    x = 17,347,750,080.71/148,371.80
  6. Step 6: Final answer
    x = 116,920.81

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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.