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Finding the Fourth Proportional to 194,714.40, 290,663.10 and 171,094.80

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Solution

The fourth proportional to 194,714.40, 290,663.10 and 171,094.80 is: 255,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,714.40 : 290,663.10 = 171,094.80 : x
  2. Step 2: Convert to fraction form
    194,714.40/290,663.10 = 171,094.80/x
  3. Step 3: Cross multiply
    194,714.40x = 290,663.10 × 171,094.80
  4. Step 4: Simplify right side
    194,714.40x = 49,730,944,961.88
  5. Step 5: Solve for x
    x = 49,730,944,961.88/194,714.40
  6. Step 6: Final answer
    x = 255,404.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.