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Finding the Fourth Proportional to 171,045.80, 256,568.70 and 115,058.60

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Solution

The fourth proportional to 171,045.80, 256,568.70 and 115,058.60 is: 172,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,045.80 : 256,568.70 = 115,058.60 : x
  2. Step 2: Convert to fraction form
    171,045.80/256,568.70 = 115,058.60/x
  3. Step 3: Cross multiply
    171,045.80x = 256,568.70 × 115,058.60
  4. Step 4: Simplify right side
    171,045.80x = 29,520,435,425.82
  5. Step 5: Solve for x
    x = 29,520,435,425.82/171,045.80
  6. Step 6: Final answer
    x = 172,587.90

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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.