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Finding the Fourth Proportional to 160,903.73, 222,278.78 and 128,596.98

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Solution

The fourth proportional to 160,903.73, 222,278.78 and 128,596.98 is: 177,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,903.73 : 222,278.78 = 128,596.98 : x
  2. Step 2: Convert to fraction form
    160,903.73/222,278.78 = 128,596.98/x
  3. Step 3: Cross multiply
    160,903.73x = 222,278.78 × 128,596.98
  4. Step 4: Simplify right side
    160,903.73x = 28,584,379,183.10
  5. Step 5: Solve for x
    x = 28,584,379,183.10/160,903.73
  6. Step 6: Final answer
    x = 177,648.96

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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.