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Finding the Fourth Proportional to 367,617.76, 551,424.60 and 143,134.36

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Solution

The fourth proportional to 367,617.76, 551,424.60 and 143,134.36 is: 214,700.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,617.76 : 551,424.60 = 143,134.36 : x
  2. Step 2: Convert to fraction form
    367,617.76/551,424.60 = 143,134.36/x
  3. Step 3: Cross multiply
    367,617.76x = 551,424.60 × 143,134.36
  4. Step 4: Simplify right side
    367,617.76x = 78,927,807,209.26
  5. Step 5: Solve for x
    x = 78,927,807,209.26/367,617.76
  6. Step 6: Final answer
    x = 214,700.75

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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.