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Finding the Fourth Proportional to 172,785.75, 238,415.41 and 96,288.07

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Solution

The fourth proportional to 172,785.75, 238,415.41 and 96,288.07 is: 132,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,785.75 : 238,415.41 = 96,288.07 : x
  2. Step 2: Convert to fraction form
    172,785.75/238,415.41 = 96,288.07/x
  3. Step 3: Cross multiply
    172,785.75x = 238,415.41 × 96,288.07
  4. Step 4: Simplify right side
    172,785.75x = 22,956,559,687.16
  5. Step 5: Solve for x
    x = 22,956,559,687.16/172,785.75
  6. Step 6: Final answer
    x = 132,861.42

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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.