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Finding the Fourth Proportional to 75,155.87, 103,732.11 and 46,856.09

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Solution

The fourth proportional to 75,155.87, 103,732.11 and 46,856.09 is: 64,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.87 : 103,732.11 = 46,856.09 : x
  2. Step 2: Convert to fraction form
    75,155.87/103,732.11 = 46,856.09/x
  3. Step 3: Cross multiply
    75,155.87x = 103,732.11 × 46,856.09
  4. Step 4: Simplify right side
    75,155.87x = 4,860,480,563.39
  5. Step 5: Solve for x
    x = 4,860,480,563.39/75,155.87
  6. Step 6: Final answer
    x = 64,672.01

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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.