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Finding the Fourth Proportional to 245,211.06, 338,422.53 and 149,697.30

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Solution

The fourth proportional to 245,211.06, 338,422.53 and 149,697.30 is: 206,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,211.06 : 338,422.53 = 149,697.30 : x
  2. Step 2: Convert to fraction form
    245,211.06/338,422.53 = 149,697.30/x
  3. Step 3: Cross multiply
    245,211.06x = 338,422.53 × 149,697.30
  4. Step 4: Simplify right side
    245,211.06x = 50,660,939,000.17
  5. Step 5: Solve for x
    x = 50,660,939,000.17/245,211.06
  6. Step 6: Final answer
    x = 206,601.36

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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.