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Finding the Fourth Proportional to 367,589.40, 551,124.63 and 142,762.56

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Solution

The fourth proportional to 367,589.40, 551,124.63 and 142,762.56 is: 214,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,589.40 : 551,124.63 = 142,762.56 : x
  2. Step 2: Convert to fraction form
    367,589.40/551,124.63 = 142,762.56/x
  3. Step 3: Cross multiply
    367,589.40x = 551,124.63 × 142,762.56
  4. Step 4: Simplify right side
    367,589.40x = 78,679,963,057.85
  5. Step 5: Solve for x
    x = 78,679,963,057.85/367,589.40
  6. Step 6: Final answer
    x = 214,043.07

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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.