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Finding the Fourth Proportional to 171,209.10, 256,813.65 and 101,052.30

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Solution

The fourth proportional to 171,209.10, 256,813.65 and 101,052.30 is: 151,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,209.10 : 256,813.65 = 101,052.30 : x
  2. Step 2: Convert to fraction form
    171,209.10/256,813.65 = 101,052.30/x
  3. Step 3: Cross multiply
    171,209.10x = 256,813.65 × 101,052.30
  4. Step 4: Simplify right side
    171,209.10x = 25,951,610,003.90
  5. Step 5: Solve for x
    x = 25,951,610,003.90/171,209.10
  6. Step 6: Final answer
    x = 151,578.45

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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.