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Finding the Fourth Proportional to 375,634.80, 563,402.88 and 186,021.36

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Solution

The fourth proportional to 375,634.80, 563,402.88 and 186,021.36 is: 279,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,634.80 : 563,402.88 = 186,021.36 : x
  2. Step 2: Convert to fraction form
    375,634.80/563,402.88 = 186,021.36/x
  3. Step 3: Cross multiply
    375,634.80x = 563,402.88 × 186,021.36
  4. Step 4: Simplify right side
    375,634.80x = 104,804,969,965.52
  5. Step 5: Solve for x
    x = 104,804,969,965.52/375,634.80
  6. Step 6: Final answer
    x = 279,007.62

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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.