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Finding the Fourth Proportional to 110,516.58, 165,774.72 and 51,319.88

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Solution

The fourth proportional to 110,516.58, 165,774.72 and 51,319.88 is: 76,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,516.58 : 165,774.72 = 51,319.88 : x
  2. Step 2: Convert to fraction form
    110,516.58/165,774.72 = 51,319.88/x
  3. Step 3: Cross multiply
    110,516.58x = 165,774.72 × 51,319.88
  4. Step 4: Simplify right side
    110,516.58x = 8,507,538,737.43
  5. Step 5: Solve for x
    x = 8,507,538,737.43/110,516.58
  6. Step 6: Final answer
    x = 76,979.75

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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.