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Finding the Fourth Proportional to 172,961.33, 259,330.19 and 67,790.93

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Solution

The fourth proportional to 172,961.33, 259,330.19 and 67,790.93 is: 101,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,961.33 : 259,330.19 = 67,790.93 : x
  2. Step 2: Convert to fraction form
    172,961.33/259,330.19 = 67,790.93/x
  3. Step 3: Cross multiply
    172,961.33x = 259,330.19 × 67,790.93
  4. Step 4: Simplify right side
    172,961.33x = 17,580,233,121.57
  5. Step 5: Solve for x
    x = 17,580,233,121.57/172,961.33
  6. Step 6: Final answer
    x = 101,642.57

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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.