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Finding the Fourth Proportional to 117,376.40, 176,064.60 and 113,229.20

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Solution

The fourth proportional to 117,376.40, 176,064.60 and 113,229.20 is: 169,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,376.40 : 176,064.60 = 113,229.20 : x
  2. Step 2: Convert to fraction form
    117,376.40/176,064.60 = 113,229.20/x
  3. Step 3: Cross multiply
    117,376.40x = 176,064.60 × 113,229.20
  4. Step 4: Simplify right side
    117,376.40x = 19,935,653,806.32
  5. Step 5: Solve for x
    x = 19,935,653,806.32/117,376.40
  6. Step 6: Final answer
    x = 169,843.80

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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.