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Finding the Fourth Proportional to 323,840.37, 485,868.02 and 99,203.00

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Solution

The fourth proportional to 323,840.37, 485,868.02 and 99,203.00 is: 148,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,840.37 : 485,868.02 = 99,203.00 : x
  2. Step 2: Convert to fraction form
    323,840.37/485,868.02 = 99,203.00/x
  3. Step 3: Cross multiply
    323,840.37x = 485,868.02 × 99,203.00
  4. Step 4: Simplify right side
    323,840.37x = 48,199,566,920.23
  5. Step 5: Solve for x
    x = 48,199,566,920.23/323,840.37
  6. Step 6: Final answer
    x = 148,837.43

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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.