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Finding the Fourth Proportional to 203,366.46, 280,655.10 and 112,724.37

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Solution

The fourth proportional to 203,366.46, 280,655.10 and 112,724.37 is: 155,564.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,366.46 : 280,655.10 = 112,724.37 : x
  2. Step 2: Convert to fraction form
    203,366.46/280,655.10 = 112,724.37/x
  3. Step 3: Cross multiply
    203,366.46x = 280,655.10 × 112,724.37
  4. Step 4: Simplify right side
    203,366.46x = 31,636,669,334.79
  5. Step 5: Solve for x
    x = 31,636,669,334.79/203,366.46
  6. Step 6: Final answer
    x = 155,564.83

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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.