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Finding the Fourth Proportional to 117,693, 176,618.88 and 43,821

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Solution

The fourth proportional to 117,693, 176,618.88 and 43,821 is: 65,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,693 : 176,618.88 = 43,821 : x
  2. Step 2: Convert to fraction form
    117,693/176,618.88 = 43,821/x
  3. Step 3: Cross multiply
    117,693x = 176,618.88 × 43,821
  4. Step 4: Simplify right side
    117,693x = 7,739,615,940.48
  5. Step 5: Solve for x
    x = 7,739,615,940.48/117,693
  6. Step 6: Final answer
    x = 65,761.06

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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.