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Finding the Fourth Proportional to 252,747.84, 348,790.68 and 139,570.56

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Solution

The fourth proportional to 252,747.84, 348,790.68 and 139,570.56 is: 192,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,747.84 : 348,790.68 = 139,570.56 : x
  2. Step 2: Convert to fraction form
    252,747.84/348,790.68 = 139,570.56/x
  3. Step 3: Cross multiply
    252,747.84x = 348,790.68 × 139,570.56
  4. Step 4: Simplify right side
    252,747.84x = 48,680,910,530.38
  5. Step 5: Solve for x
    x = 48,680,910,530.38/252,747.84
  6. Step 6: Final answer
    x = 192,606.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.