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Finding the Fourth Proportional to 64,355.48, 88,738.62 and 40,452.92

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Solution

The fourth proportional to 64,355.48, 88,738.62 and 40,452.92 is: 55,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.48 : 88,738.62 = 40,452.92 : x
  2. Step 2: Convert to fraction form
    64,355.48/88,738.62 = 40,452.92/x
  3. Step 3: Cross multiply
    64,355.48x = 88,738.62 × 40,452.92
  4. Step 4: Simplify right side
    64,355.48x = 3,589,736,295.77
  5. Step 5: Solve for x
    x = 3,589,736,295.77/64,355.48
  6. Step 6: Final answer
    x = 55,779.81

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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.