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Finding the Fourth Proportional to 468,913.38, 703,486.70 and 136,489.38

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Solution

The fourth proportional to 468,913.38, 703,486.70 and 136,489.38 is: 204,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,913.38 : 703,486.70 = 136,489.38 : x
  2. Step 2: Convert to fraction form
    468,913.38/703,486.70 = 136,489.38/x
  3. Step 3: Cross multiply
    468,913.38x = 703,486.70 × 136,489.38
  4. Step 4: Simplify right side
    468,913.38x = 96,018,463,521.25
  5. Step 5: Solve for x
    x = 96,018,463,521.25/468,913.38
  6. Step 6: Final answer
    x = 204,768.02

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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.