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Finding the Fourth Proportional to 107,969.63, 162,012.76 and 52,565.63

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Solution

The fourth proportional to 107,969.63, 162,012.76 and 52,565.63 is: 78,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,969.63 : 162,012.76 = 52,565.63 : x
  2. Step 2: Convert to fraction form
    107,969.63/162,012.76 = 52,565.63/x
  3. Step 3: Cross multiply
    107,969.63x = 162,012.76 × 52,565.63
  4. Step 4: Simplify right side
    107,969.63x = 8,516,301,855.96
  5. Step 5: Solve for x
    x = 8,516,301,855.96/107,969.63
  6. Step 6: Final answer
    x = 78,876.83

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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.