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Finding the Fourth Proportional to 367,583.40, 551,115.63 and 142,756.56

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Solution

The fourth proportional to 367,583.40, 551,115.63 and 142,756.56 is: 214,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,583.40 : 551,115.63 = 142,756.56 : x
  2. Step 2: Convert to fraction form
    367,583.40/551,115.63 = 142,756.56/x
  3. Step 3: Cross multiply
    367,583.40x = 551,115.63 × 142,756.56
  4. Step 4: Simplify right side
    367,583.40x = 78,675,371,501.03
  5. Step 5: Solve for x
    x = 78,675,371,501.03/367,583.40
  6. Step 6: Final answer
    x = 214,034.07

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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.