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Finding the Fourth Proportional to 64,438.76, 88,723.41 and 58,533.86

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Solution

The fourth proportional to 64,438.76, 88,723.41 and 58,533.86 is: 80,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,438.76 : 88,723.41 = 58,533.86 : x
  2. Step 2: Convert to fraction form
    64,438.76/88,723.41 = 58,533.86/x
  3. Step 3: Cross multiply
    64,438.76x = 88,723.41 × 58,533.86
  4. Step 4: Simplify right side
    64,438.76x = 5,193,323,659.66
  5. Step 5: Solve for x
    x = 5,193,323,659.66/64,438.76
  6. Step 6: Final answer
    x = 80,593.17

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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.