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Finding the Fourth Proportional to 384,911.56, 577,390.92 and 148,254.94

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Solution

The fourth proportional to 384,911.56, 577,390.92 and 148,254.94 is: 222,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,911.56 : 577,390.92 = 148,254.94 : x
  2. Step 2: Convert to fraction form
    384,911.56/577,390.92 = 148,254.94/x
  3. Step 3: Cross multiply
    384,911.56x = 577,390.92 × 148,254.94
  4. Step 4: Simplify right side
    384,911.56x = 85,601,056,201.14
  5. Step 5: Solve for x
    x = 85,601,056,201.14/384,911.56
  6. Step 6: Final answer
    x = 222,391.49

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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.