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Finding the Fourth Proportional to 171,002.10, 256,211.55 and 141,258.90

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Solution

The fourth proportional to 171,002.10, 256,211.55 and 141,258.90 is: 211,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,002.10 : 256,211.55 = 141,258.90 : x
  2. Step 2: Convert to fraction form
    171,002.10/256,211.55 = 141,258.90/x
  3. Step 3: Cross multiply
    171,002.10x = 256,211.55 × 141,258.90
  4. Step 4: Simplify right side
    171,002.10x = 36,192,161,720.30
  5. Step 5: Solve for x
    x = 36,192,161,720.30/171,002.10
  6. Step 6: Final answer
    x = 211,647.47

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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.