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Finding the Fourth Proportional to 269,322.40, 404,080.04 and 115,383.79

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Solution

The fourth proportional to 269,322.40, 404,080.04 and 115,383.79 is: 173,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,322.40 : 404,080.04 = 115,383.79 : x
  2. Step 2: Convert to fraction form
    269,322.40/404,080.04 = 115,383.79/x
  3. Step 3: Cross multiply
    269,322.40x = 404,080.04 × 115,383.79
  4. Step 4: Simplify right side
    269,322.40x = 46,624,286,478.55
  5. Step 5: Solve for x
    x = 46,624,286,478.55/269,322.40
  6. Step 6: Final answer
    x = 173,117.00

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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.