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Finding the Fourth Proportional to 118,240.86, 162,895.14 and 82,365.96

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Solution

The fourth proportional to 118,240.86, 162,895.14 and 82,365.96 is: 113,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,240.86 : 162,895.14 = 82,365.96 : x
  2. Step 2: Convert to fraction form
    118,240.86/162,895.14 = 82,365.96/x
  3. Step 3: Cross multiply
    118,240.86x = 162,895.14 × 82,365.96
  4. Step 4: Simplify right side
    118,240.86x = 13,417,014,585.43
  5. Step 5: Solve for x
    x = 13,417,014,585.43/118,240.86
  6. Step 6: Final answer
    x = 113,471.90

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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.