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Finding the Fourth Proportional to 64,366.71, 88,829.11 and 40,182

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Solution

The fourth proportional to 64,366.71, 88,829.11 and 40,182 is: 55,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,366.71 : 88,829.11 = 40,182 : x
  2. Step 2: Convert to fraction form
    64,366.71/88,829.11 = 40,182/x
  3. Step 3: Cross multiply
    64,366.71x = 88,829.11 × 40,182
  4. Step 4: Simplify right side
    64,366.71x = 3,569,331,298.02
  5. Step 5: Solve for x
    x = 3,569,331,298.02/64,366.71
  6. Step 6: Final answer
    x = 55,453.06

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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.