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Finding the Fourth Proportional to 251,807.25, 347,482.67 and 137,082.96

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Solution

The fourth proportional to 251,807.25, 347,482.67 and 137,082.96 is: 189,168.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,807.25 : 347,482.67 = 137,082.96 : x
  2. Step 2: Convert to fraction form
    251,807.25/347,482.67 = 137,082.96/x
  3. Step 3: Cross multiply
    251,807.25x = 347,482.67 × 137,082.96
  4. Step 4: Simplify right side
    251,807.25x = 47,633,952,952.30
  5. Step 5: Solve for x
    x = 47,633,952,952.30/251,807.25
  6. Step 6: Final answer
    x = 189,168.31

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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.