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Finding the Fourth Proportional to 171,060.60, 256,299.30 and 141,317.40

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Solution

The fourth proportional to 171,060.60, 256,299.30 and 141,317.40 is: 211,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,060.60 : 256,299.30 = 141,317.40 : x
  2. Step 2: Convert to fraction form
    171,060.60/256,299.30 = 141,317.40/x
  3. Step 3: Cross multiply
    171,060.60x = 256,299.30 × 141,317.40
  4. Step 4: Simplify right side
    171,060.60x = 36,219,550,697.82
  5. Step 5: Solve for x
    x = 36,219,550,697.82/171,060.60
  6. Step 6: Final answer
    x = 211,735.20

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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.