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Finding the Fourth Proportional to 171,037.40, 256,383.30 and 77,610.20

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Solution

The fourth proportional to 171,037.40, 256,383.30 and 77,610.20 is: 116,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,037.40 : 256,383.30 = 77,610.20 : x
  2. Step 2: Convert to fraction form
    171,037.40/256,383.30 = 77,610.20/x
  3. Step 3: Cross multiply
    171,037.40x = 256,383.30 × 77,610.20
  4. Step 4: Simplify right side
    171,037.40x = 19,897,959,189.66
  5. Step 5: Solve for x
    x = 19,897,959,189.66/171,037.40
  6. Step 6: Final answer
    x = 116,336.89

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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.