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Finding the Fourth Proportional to 117,116.40, 175,559.40 and 57,961.20

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Solution

The fourth proportional to 117,116.40, 175,559.40 and 57,961.20 is: 86,884.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,116.40 : 175,559.40 = 57,961.20 : x
  2. Step 2: Convert to fraction form
    117,116.40/175,559.40 = 57,961.20/x
  3. Step 3: Cross multiply
    117,116.40x = 175,559.40 × 57,961.20
  4. Step 4: Simplify right side
    117,116.40x = 10,175,633,495.28
  5. Step 5: Solve for x
    x = 10,175,633,495.28/117,116.40
  6. Step 6: Final answer
    x = 86,884.79

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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.