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Finding the Fourth Proportional to 368,931.48, 552,147.21 and 226,866.71

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Solution

The fourth proportional to 368,931.48, 552,147.21 and 226,866.71 is: 339,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,931.48 : 552,147.21 = 226,866.71 : x
  2. Step 2: Convert to fraction form
    368,931.48/552,147.21 = 226,866.71/x
  3. Step 3: Cross multiply
    368,931.48x = 552,147.21 × 226,866.71
  4. Step 4: Simplify right side
    368,931.48x = 125,263,818,207.64
  5. Step 5: Solve for x
    x = 125,263,818,207.64/368,931.48
  6. Step 6: Final answer
    x = 339,531.39

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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.