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Finding the Fourth Proportional to 591,289.80, 886,934.70 and 148,057.80

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Solution

The fourth proportional to 591,289.80, 886,934.70 and 148,057.80 is: 222,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,289.80 : 886,934.70 = 148,057.80 : x
  2. Step 2: Convert to fraction form
    591,289.80/886,934.70 = 148,057.80/x
  3. Step 3: Cross multiply
    591,289.80x = 886,934.70 × 148,057.80
  4. Step 4: Simplify right side
    591,289.80x = 131,317,600,425.66
  5. Step 5: Solve for x
    x = 131,317,600,425.66/591,289.80
  6. Step 6: Final answer
    x = 222,086.70

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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.