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Finding the Fourth Proportional to 116,393.55, 174,917.31 and 69,015.45

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Solution

The fourth proportional to 116,393.55, 174,917.31 and 69,015.45 is: 103,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,393.55 : 174,917.31 = 69,015.45 : x
  2. Step 2: Convert to fraction form
    116,393.55/174,917.31 = 69,015.45/x
  3. Step 3: Cross multiply
    116,393.55x = 174,917.31 × 69,015.45
  4. Step 4: Simplify right side
    116,393.55x = 12,071,996,862.44
  5. Step 5: Solve for x
    x = 12,071,996,862.44/116,393.55
  6. Step 6: Final answer
    x = 103,717.06

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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.