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Finding the Fourth Proportional to 119,633.60, 165,057.60 and 69,322.88

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Solution

The fourth proportional to 119,633.60, 165,057.60 and 69,322.88 is: 95,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,633.60 : 165,057.60 = 69,322.88 : x
  2. Step 2: Convert to fraction form
    119,633.60/165,057.60 = 69,322.88/x
  3. Step 3: Cross multiply
    119,633.60x = 165,057.60 × 69,322.88
  4. Step 4: Simplify right side
    119,633.60x = 11,442,268,197.89
  5. Step 5: Solve for x
    x = 11,442,268,197.89/119,633.60
  6. Step 6: Final answer
    x = 95,644.27

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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.