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Finding the Fourth Proportional to 64,761.31, 97,155.78 and 36,694.81

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Solution

The fourth proportional to 64,761.31, 97,155.78 and 36,694.81 is: 55,050.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.31 : 97,155.78 = 36,694.81 : x
  2. Step 2: Convert to fraction form
    64,761.31/97,155.78 = 36,694.81/x
  3. Step 3: Cross multiply
    64,761.31x = 97,155.78 × 36,694.81
  4. Step 4: Simplify right side
    64,761.31x = 3,565,112,887.50
  5. Step 5: Solve for x
    x = 3,565,112,887.50/64,761.31
  6. Step 6: Final answer
    x = 55,050.04

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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.