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Finding the Fourth Proportional to 361,090.90, 541,490.55 and 124,311.70

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Solution

The fourth proportional to 361,090.90, 541,490.55 and 124,311.70 is: 186,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,090.90 : 541,490.55 = 124,311.70 : x
  2. Step 2: Convert to fraction form
    361,090.90/541,490.55 = 124,311.70/x
  3. Step 3: Cross multiply
    361,090.90x = 541,490.55 × 124,311.70
  4. Step 4: Simplify right side
    361,090.90x = 67,313,610,804.44
  5. Step 5: Solve for x
    x = 67,313,610,804.44/361,090.90
  6. Step 6: Final answer
    x = 186,417.36

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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.