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Finding the Fourth Proportional to 253,576.89, 349,947.03 and 140,399.64

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Solution

The fourth proportional to 253,576.89, 349,947.03 and 140,399.64 is: 193,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,576.89 : 349,947.03 = 140,399.64 : x
  2. Step 2: Convert to fraction form
    253,576.89/349,947.03 = 140,399.64/x
  3. Step 3: Cross multiply
    253,576.89x = 349,947.03 × 140,399.64
  4. Step 4: Simplify right side
    253,576.89x = 49,132,437,031.07
  5. Step 5: Solve for x
    x = 49,132,437,031.07/253,576.89
  6. Step 6: Final answer
    x = 193,757.55

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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.