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Finding the Fourth Proportional to 167,474.24, 251,118.90 and 87,312.20

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Solution

The fourth proportional to 167,474.24, 251,118.90 and 87,312.20 is: 130,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,474.24 : 251,118.90 = 87,312.20 : x
  2. Step 2: Convert to fraction form
    167,474.24/251,118.90 = 87,312.20/x
  3. Step 3: Cross multiply
    167,474.24x = 251,118.90 × 87,312.20
  4. Step 4: Simplify right side
    167,474.24x = 21,925,743,620.58
  5. Step 5: Solve for x
    x = 21,925,743,620.58/167,474.24
  6. Step 6: Final answer
    x = 130,920.10

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1.5x scale

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.