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Finding the Fourth Proportional to 376,090.80, 563,963.40 and 165,620.40

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Solution

The fourth proportional to 376,090.80, 563,963.40 and 165,620.40 is: 248,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,090.80 : 563,963.40 = 165,620.40 : x
  2. Step 2: Convert to fraction form
    376,090.80/563,963.40 = 165,620.40/x
  3. Step 3: Cross multiply
    376,090.80x = 563,963.40 × 165,620.40
  4. Step 4: Simplify right side
    376,090.80x = 93,403,843,893.36
  5. Step 5: Solve for x
    x = 93,403,843,893.36/376,090.80
  6. Step 6: Final answer
    x = 248,354.50

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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.