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Finding the Fourth Proportional to 219,937.33, 329,900.22 and 70,186.75

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Solution

The fourth proportional to 219,937.33, 329,900.22 and 70,186.75 is: 105,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,937.33 : 329,900.22 = 70,186.75 : x
  2. Step 2: Convert to fraction form
    219,937.33/329,900.22 = 70,186.75/x
  3. Step 3: Cross multiply
    219,937.33x = 329,900.22 × 70,186.75
  4. Step 4: Simplify right side
    219,937.33x = 23,154,625,099.62
  5. Step 5: Solve for x
    x = 23,154,625,099.62/219,937.33
  6. Step 6: Final answer
    x = 105,278.29

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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.