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Finding the Fourth Proportional to 323,603.60, 485,059.80 and 123,846.80

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Solution

The fourth proportional to 323,603.60, 485,059.80 and 123,846.80 is: 185,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,603.60 : 485,059.80 = 123,846.80 : x
  2. Step 2: Convert to fraction form
    323,603.60/485,059.80 = 123,846.80/x
  3. Step 3: Cross multiply
    323,603.60x = 485,059.80 × 123,846.80
  4. Step 4: Simplify right side
    323,603.60x = 60,073,104,038.64
  5. Step 5: Solve for x
    x = 60,073,104,038.64/323,603.60
  6. Step 6: Final answer
    x = 185,637.93

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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.