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Finding the Fourth Proportional to 119,954.28, 165,551.46 and 69,653.28

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Solution

The fourth proportional to 119,954.28, 165,551.46 and 69,653.28 is: 96,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,954.28 : 165,551.46 = 69,653.28 : x
  2. Step 2: Convert to fraction form
    119,954.28/165,551.46 = 69,653.28/x
  3. Step 3: Cross multiply
    119,954.28x = 165,551.46 × 69,653.28
  4. Step 4: Simplify right side
    119,954.28x = 11,531,202,197.79
  5. Step 5: Solve for x
    x = 11,531,202,197.79/119,954.28
  6. Step 6: Final answer
    x = 96,129.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.