Home / 117,769.40-176,654.10-47,612.60

Finding the Fourth Proportional to 117,769.40, 176,654.10 and 47,612.60

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Solution

The fourth proportional to 117,769.40, 176,654.10 and 47,612.60 is: 71,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,769.40 : 176,654.10 = 47,612.60 : x
  2. Step 2: Convert to fraction form
    117,769.40/176,654.10 = 47,612.60/x
  3. Step 3: Cross multiply
    117,769.40x = 176,654.10 × 47,612.60
  4. Step 4: Simplify right side
    117,769.40x = 8,410,961,001.66
  5. Step 5: Solve for x
    x = 8,410,961,001.66/117,769.40
  6. Step 6: Final answer
    x = 71,418.90

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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.