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Finding the Fourth Proportional to 64,039.87, 88,358.43 and 43,903.05

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Solution

The fourth proportional to 64,039.87, 88,358.43 and 43,903.05 is: 60,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,039.87 : 88,358.43 = 43,903.05 : x
  2. Step 2: Convert to fraction form
    64,039.87/88,358.43 = 43,903.05/x
  3. Step 3: Cross multiply
    64,039.87x = 88,358.43 × 43,903.05
  4. Step 4: Simplify right side
    64,039.87x = 3,879,204,570.21
  5. Step 5: Solve for x
    x = 3,879,204,570.21/64,039.87
  6. Step 6: Final answer
    x = 60,574.84

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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.