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Finding the Fourth Proportional to 203,360.31, 305,038.92 and 61,204.98

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Solution

The fourth proportional to 203,360.31, 305,038.92 and 61,204.98 is: 91,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,360.31 : 305,038.92 = 61,204.98 : x
  2. Step 2: Convert to fraction form
    203,360.31/305,038.92 = 61,204.98/x
  3. Step 3: Cross multiply
    203,360.31x = 305,038.92 × 61,204.98
  4. Step 4: Simplify right side
    203,360.31x = 18,669,900,997.82
  5. Step 5: Solve for x
    x = 18,669,900,997.82/203,360.31
  6. Step 6: Final answer
    x = 91,807.01

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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.