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Finding the Fourth Proportional to 356,548.40, 492,050.46 and 203,611.52

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Solution

The fourth proportional to 356,548.40, 492,050.46 and 203,611.52 is: 280,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,548.40 : 492,050.46 = 203,611.52 : x
  2. Step 2: Convert to fraction form
    356,548.40/492,050.46 = 203,611.52/x
  3. Step 3: Cross multiply
    356,548.40x = 492,050.46 × 203,611.52
  4. Step 4: Simplify right side
    356,548.40x = 100,187,142,077.30
  5. Step 5: Solve for x
    x = 100,187,142,077.30/356,548.40
  6. Step 6: Final answer
    x = 280,991.70

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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.