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Finding the Fourth Proportional to 374,153.88, 516,313.08 and 204,355.20

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Solution

The fourth proportional to 374,153.88, 516,313.08 and 204,355.20 is: 281,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,153.88 : 516,313.08 = 204,355.20 : x
  2. Step 2: Convert to fraction form
    374,153.88/516,313.08 = 204,355.20/x
  3. Step 3: Cross multiply
    374,153.88x = 516,313.08 × 204,355.20
  4. Step 4: Simplify right side
    374,153.88x = 105,511,262,726.02
  5. Step 5: Solve for x
    x = 105,511,262,726.02/374,153.88
  6. Step 6: Final answer
    x = 281,999.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.