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Finding the Fourth Proportional to 171,253.08, 256,901.50 and 66,102.12

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Solution

The fourth proportional to 171,253.08, 256,901.50 and 66,102.12 is: 99,161.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,253.08 : 256,901.50 = 66,102.12 : x
  2. Step 2: Convert to fraction form
    171,253.08/256,901.50 = 66,102.12/x
  3. Step 3: Cross multiply
    171,253.08x = 256,901.50 × 66,102.12
  4. Step 4: Simplify right side
    171,253.08x = 16,981,733,781.18
  5. Step 5: Solve for x
    x = 16,981,733,781.18/171,253.08
  6. Step 6: Final answer
    x = 99,161.63

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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.