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Finding the Fourth Proportional to 468,669, 703,123.38 and 136,245

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Solution

The fourth proportional to 468,669, 703,123.38 and 136,245 is: 204,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,669 : 703,123.38 = 136,245 : x
  2. Step 2: Convert to fraction form
    468,669/703,123.38 = 136,245/x
  3. Step 3: Cross multiply
    468,669x = 703,123.38 × 136,245
  4. Step 4: Simplify right side
    468,669x = 95,797,044,908.10
  5. Step 5: Solve for x
    x = 95,797,044,908.10/468,669
  6. Step 6: Final answer
    x = 204,402.35

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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.