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Finding the Fourth Proportional to 171,134.10, 256,774.05 and 118,514.94

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Solution

The fourth proportional to 171,134.10, 256,774.05 and 118,514.94 is: 177,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,134.10 : 256,774.05 = 118,514.94 : x
  2. Step 2: Convert to fraction form
    171,134.10/256,774.05 = 118,514.94/x
  3. Step 3: Cross multiply
    171,134.10x = 256,774.05 × 118,514.94
  4. Step 4: Simplify right side
    171,134.10x = 30,431,561,129.31
  5. Step 5: Solve for x
    x = 30,431,561,129.31/171,134.10
  6. Step 6: Final answer
    x = 177,822.90

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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.