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Finding the Fourth Proportional to 325,746.72, 449,750.21 and 203,426.01

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Solution

The fourth proportional to 325,746.72, 449,750.21 and 203,426.01 is: 280,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,746.72 : 449,750.21 = 203,426.01 : x
  2. Step 2: Convert to fraction form
    325,746.72/449,750.21 = 203,426.01/x
  3. Step 3: Cross multiply
    325,746.72x = 449,750.21 × 203,426.01
  4. Step 4: Simplify right side
    325,746.72x = 91,490,889,699.83
  5. Step 5: Solve for x
    x = 91,490,889,699.83/325,746.72
  6. Step 6: Final answer
    x = 280,865.11

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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.