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Finding the Fourth Proportional to 468,685, 703,147.38 and 136,261

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Solution

The fourth proportional to 468,685, 703,147.38 and 136,261 is: 204,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,685 : 703,147.38 = 136,261 : x
  2. Step 2: Convert to fraction form
    468,685/703,147.38 = 136,261/x
  3. Step 3: Cross multiply
    468,685x = 703,147.38 × 136,261
  4. Step 4: Simplify right side
    468,685x = 95,811,565,146.18
  5. Step 5: Solve for x
    x = 95,811,565,146.18/468,685
  6. Step 6: Final answer
    x = 204,426.35

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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.