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Finding the Fourth Proportional to 107,856.95, 161,785.42 and 32,977.09

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Solution

The fourth proportional to 107,856.95, 161,785.42 and 32,977.09 is: 49,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,856.95 : 161,785.42 = 32,977.09 : x
  2. Step 2: Convert to fraction form
    107,856.95/161,785.42 = 32,977.09/x
  3. Step 3: Cross multiply
    107,856.95x = 161,785.42 × 32,977.09
  4. Step 4: Simplify right side
    107,856.95x = 5,335,212,475.82
  5. Step 5: Solve for x
    x = 5,335,212,475.82/107,856.95
  6. Step 6: Final answer
    x = 49,465.64

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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.