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Finding the Fourth Proportional to 114,555.45, 171,833.18 and 99,793.20

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Solution

The fourth proportional to 114,555.45, 171,833.18 and 99,793.20 is: 149,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,555.45 : 171,833.18 = 99,793.20 : x
  2. Step 2: Convert to fraction form
    114,555.45/171,833.18 = 99,793.20/x
  3. Step 3: Cross multiply
    114,555.45x = 171,833.18 × 99,793.20
  4. Step 4: Simplify right side
    114,555.45x = 17,147,782,399.41
  5. Step 5: Solve for x
    x = 17,147,782,399.41/114,555.45
  6. Step 6: Final answer
    x = 149,689.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.