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Finding the Fourth Proportional to 269,720.51, 404,242.46 and 143,048.10

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Solution

The fourth proportional to 269,720.51, 404,242.46 and 143,048.10 is: 214,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,720.51 : 404,242.46 = 143,048.10 : x
  2. Step 2: Convert to fraction form
    269,720.51/404,242.46 = 143,048.10/x
  3. Step 3: Cross multiply
    269,720.51x = 404,242.46 × 143,048.10
  4. Step 4: Simplify right side
    269,720.51x = 57,826,115,127.09
  5. Step 5: Solve for x
    x = 57,826,115,127.09/269,720.51
  6. Step 6: Final answer
    x = 214,392.73

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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.