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Finding the Fourth Proportional to 171,058.10, 256,295.55 and 141,314.90

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Solution

The fourth proportional to 171,058.10, 256,295.55 and 141,314.90 is: 211,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,058.10 : 256,295.55 = 141,314.90 : x
  2. Step 2: Convert to fraction form
    171,058.10/256,295.55 = 141,314.90/x
  3. Step 3: Cross multiply
    171,058.10x = 256,295.55 × 141,314.90
  4. Step 4: Simplify right side
    171,058.10x = 36,218,380,018.70
  5. Step 5: Solve for x
    x = 36,218,380,018.70/171,058.10
  6. Step 6: Final answer
    x = 211,731.45

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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.