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Finding the Fourth Proportional to 375,635.30, 563,403.63 and 186,021.86

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Solution

The fourth proportional to 375,635.30, 563,403.63 and 186,021.86 is: 279,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,635.30 : 563,403.63 = 186,021.86 : x
  2. Step 2: Convert to fraction form
    375,635.30/563,403.63 = 186,021.86/x
  3. Step 3: Cross multiply
    375,635.30x = 563,403.63 × 186,021.86
  4. Step 4: Simplify right side
    375,635.30x = 104,805,391,183.35
  5. Step 5: Solve for x
    x = 104,805,391,183.35/375,635.30
  6. Step 6: Final answer
    x = 279,008.37

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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.