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Finding the Fourth Proportional to 220,608.32, 304,442.52 and 120,006.32

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Solution

The fourth proportional to 220,608.32, 304,442.52 and 120,006.32 is: 165,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,608.32 : 304,442.52 = 120,006.32 : x
  2. Step 2: Convert to fraction form
    220,608.32/304,442.52 = 120,006.32/x
  3. Step 3: Cross multiply
    220,608.32x = 304,442.52 × 120,006.32
  4. Step 4: Simplify right side
    220,608.32x = 36,535,026,476.73
  5. Step 5: Solve for x
    x = 36,535,026,476.73/220,608.32
  6. Step 6: Final answer
    x = 165,610.37

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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.