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Finding the Fourth Proportional to 253,048.36, 349,241.46 and 145,616.20

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Solution

The fourth proportional to 253,048.36, 349,241.46 and 145,616.20 is: 200,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,048.36 : 349,241.46 = 145,616.20 : x
  2. Step 2: Convert to fraction form
    253,048.36/349,241.46 = 145,616.20/x
  3. Step 3: Cross multiply
    253,048.36x = 349,241.46 × 145,616.20
  4. Step 4: Simplify right side
    253,048.36x = 50,855,214,287.65
  5. Step 5: Solve for x
    x = 50,855,214,287.65/253,048.36
  6. Step 6: Final answer
    x = 200,970.34

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1.5x scale

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.