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Finding the Fourth Proportional to 373,459.82, 515,381.56 and 203,700.02

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Solution

The fourth proportional to 373,459.82, 515,381.56 and 203,700.02 is: 281,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,459.82 : 515,381.56 = 203,700.02 : x
  2. Step 2: Convert to fraction form
    373,459.82/515,381.56 = 203,700.02/x
  3. Step 3: Cross multiply
    373,459.82x = 515,381.56 × 203,700.02
  4. Step 4: Simplify right side
    373,459.82x = 104,983,234,079.63
  5. Step 5: Solve for x
    x = 104,983,234,079.63/373,459.82
  6. Step 6: Final answer
    x = 281,109.85

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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.