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Finding the Fourth Proportional to 269,574.04, 371,991.30 and 148,719.88

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Solution

The fourth proportional to 269,574.04, 371,991.30 and 148,719.88 is: 205,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,574.04 : 371,991.30 = 148,719.88 : x
  2. Step 2: Convert to fraction form
    269,574.04/371,991.30 = 148,719.88/x
  3. Step 3: Cross multiply
    269,574.04x = 371,991.30 × 148,719.88
  4. Step 4: Simplify right side
    269,574.04x = 55,322,501,497.04
  5. Step 5: Solve for x
    x = 55,322,501,497.04/269,574.04
  6. Step 6: Final answer
    x = 205,221.92

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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.