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Finding the Fourth Proportional to 64,129.81, 88,500.60 and 35,835.43

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Solution

The fourth proportional to 64,129.81, 88,500.60 and 35,835.43 is: 49,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.81 : 88,500.60 = 35,835.43 : x
  2. Step 2: Convert to fraction form
    64,129.81/88,500.60 = 35,835.43/x
  3. Step 3: Cross multiply
    64,129.81x = 88,500.60 × 35,835.43
  4. Step 4: Simplify right side
    64,129.81x = 3,171,457,056.26
  5. Step 5: Solve for x
    x = 3,171,457,056.26/64,129.81
  6. Step 6: Final answer
    x = 49,453.71

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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.