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Finding the Fourth Proportional to 118,049.96, 162,890.33 and 66,356.87

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Solution

The fourth proportional to 118,049.96, 162,890.33 and 66,356.87 is: 91,562.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,049.96 : 162,890.33 = 66,356.87 : x
  2. Step 2: Convert to fraction form
    118,049.96/162,890.33 = 66,356.87/x
  3. Step 3: Cross multiply
    118,049.96x = 162,890.33 × 66,356.87
  4. Step 4: Simplify right side
    118,049.96x = 10,808,891,305.83
  5. Step 5: Solve for x
    x = 10,808,891,305.83/118,049.96
  6. Step 6: Final answer
    x = 91,562.01

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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.