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Finding the Fourth Proportional to 348,640.20, 522,960.30 and 124,007.96

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Solution

The fourth proportional to 348,640.20, 522,960.30 and 124,007.96 is: 186,011.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,640.20 : 522,960.30 = 124,007.96 : x
  2. Step 2: Convert to fraction form
    348,640.20/522,960.30 = 124,007.96/x
  3. Step 3: Cross multiply
    348,640.20x = 522,960.30 × 124,007.96
  4. Step 4: Simplify right side
    348,640.20x = 64,851,241,271.39
  5. Step 5: Solve for x
    x = 64,851,241,271.39/348,640.20
  6. Step 6: Final answer
    x = 186,011.94

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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.