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Finding the Fourth Proportional to 468,913.88, 703,487.46 and 136,489.88

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Solution

The fourth proportional to 468,913.88, 703,487.46 and 136,489.88 is: 204,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,913.88 : 703,487.46 = 136,489.88 : x
  2. Step 2: Convert to fraction form
    468,913.88/703,487.46 = 136,489.88/x
  3. Step 3: Cross multiply
    468,913.88x = 703,487.46 × 136,489.88
  4. Step 4: Simplify right side
    468,913.88x = 96,018,915,479.47
  5. Step 5: Solve for x
    x = 96,018,915,479.47/468,913.88
  6. Step 6: Final answer
    x = 204,768.77

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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.