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Finding the Fourth Proportional to 348,318.54, 522,529.76 and 123,660.17

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Solution

The fourth proportional to 348,318.54, 522,529.76 and 123,660.17 is: 185,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,318.54 : 522,529.76 = 123,660.17 : x
  2. Step 2: Convert to fraction form
    348,318.54/522,529.76 = 123,660.17/x
  3. Step 3: Cross multiply
    348,318.54x = 522,529.76 × 123,660.17
  4. Step 4: Simplify right side
    348,318.54x = 64,616,118,951.66
  5. Step 5: Solve for x
    x = 64,616,118,951.66/348,318.54
  6. Step 6: Final answer
    x = 185,508.70

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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.