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Finding the Fourth Proportional to 367,451.60, 551,035.23 and 142,782.45

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Solution

The fourth proportional to 367,451.60, 551,035.23 and 142,782.45 is: 214,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,451.60 : 551,035.23 = 142,782.45 : x
  2. Step 2: Convert to fraction form
    367,451.60/551,035.23 = 142,782.45/x
  3. Step 3: Cross multiply
    367,451.60x = 551,035.23 × 142,782.45
  4. Step 4: Simplify right side
    367,451.60x = 78,678,160,175.71
  5. Step 5: Solve for x
    x = 78,678,160,175.71/367,451.60
  6. Step 6: Final answer
    x = 214,118.43

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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.