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Finding the Fourth Proportional to 468,671, 703,126.38 and 136,247

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Solution

The fourth proportional to 468,671, 703,126.38 and 136,247 is: 204,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,671 : 703,126.38 = 136,247 : x
  2. Step 2: Convert to fraction form
    468,671/703,126.38 = 136,247/x
  3. Step 3: Cross multiply
    468,671x = 703,126.38 × 136,247
  4. Step 4: Simplify right side
    468,671x = 95,798,859,895.86
  5. Step 5: Solve for x
    x = 95,798,859,895.86/468,671
  6. Step 6: Final answer
    x = 204,405.35

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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.