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Finding the Fourth Proportional to 64,777.59, 97,041.92 and 39,744.68

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Solution

The fourth proportional to 64,777.59, 97,041.92 and 39,744.68 is: 59,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,777.59 : 97,041.92 = 39,744.68 : x
  2. Step 2: Convert to fraction form
    64,777.59/97,041.92 = 39,744.68/x
  3. Step 3: Cross multiply
    64,777.59x = 97,041.92 × 39,744.68
  4. Step 4: Simplify right side
    64,777.59x = 3,856,899,373.05
  5. Step 5: Solve for x
    x = 3,856,899,373.05/64,777.59
  6. Step 6: Final answer
    x = 59,540.64

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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.