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Finding the Fourth Proportional to 64,439.40, 88,998.42 and 44,357.88

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Solution

The fourth proportional to 64,439.40, 88,998.42 and 44,357.88 is: 61,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,439.40 : 88,998.42 = 44,357.88 : x
  2. Step 2: Convert to fraction form
    64,439.40/88,998.42 = 44,357.88/x
  3. Step 3: Cross multiply
    64,439.40x = 88,998.42 × 44,357.88
  4. Step 4: Simplify right side
    64,439.40x = 3,947,781,234.55
  5. Step 5: Solve for x
    x = 3,947,781,234.55/64,439.40
  6. Step 6: Final answer
    x = 61,263.47

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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.