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Finding the Fourth Proportional to 201,085.57, 301,665.42 and 66,157.22

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Solution

The fourth proportional to 201,085.57, 301,665.42 and 66,157.22 is: 99,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,085.57 : 301,665.42 = 66,157.22 : x
  2. Step 2: Convert to fraction form
    201,085.57/301,665.42 = 66,157.22/x
  3. Step 3: Cross multiply
    201,085.57x = 301,665.42 × 66,157.22
  4. Step 4: Simplify right side
    201,085.57x = 19,957,345,557.33
  5. Step 5: Solve for x
    x = 19,957,345,557.33/201,085.57
  6. Step 6: Final answer
    x = 99,248.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.