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Finding the Fourth Proportional to 146,409.84, 202,022.94 and 85,974.83

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Solution

The fourth proportional to 146,409.84, 202,022.94 and 85,974.83 is: 118,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,409.84 : 202,022.94 = 85,974.83 : x
  2. Step 2: Convert to fraction form
    146,409.84/202,022.94 = 85,974.83/x
  3. Step 3: Cross multiply
    146,409.84x = 202,022.94 × 85,974.83
  4. Step 4: Simplify right side
    146,409.84x = 17,368,887,992.48
  5. Step 5: Solve for x
    x = 17,368,887,992.48/146,409.84
  6. Step 6: Final answer
    x = 118,631.97

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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.