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Finding the Fourth Proportional to 146,646.54, 202,371.21 and 79,578.54

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Solution

The fourth proportional to 146,646.54, 202,371.21 and 79,578.54 is: 109,817.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,646.54 : 202,371.21 = 79,578.54 : x
  2. Step 2: Convert to fraction form
    146,646.54/202,371.21 = 79,578.54/x
  3. Step 3: Cross multiply
    146,646.54x = 202,371.21 × 79,578.54
  4. Step 4: Simplify right side
    146,646.54x = 16,104,405,429.83
  5. Step 5: Solve for x
    x = 16,104,405,429.83/146,646.54
  6. Step 6: Final answer
    x = 109,817.83

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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.