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Finding the Fourth Proportional to 84,463.32, 126,750.90 and 45,048.84

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Solution

The fourth proportional to 84,463.32, 126,750.90 and 45,048.84 is: 67,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,463.32 : 126,750.90 = 45,048.84 : x
  2. Step 2: Convert to fraction form
    84,463.32/126,750.90 = 45,048.84/x
  3. Step 3: Cross multiply
    84,463.32x = 126,750.90 × 45,048.84
  4. Step 4: Simplify right side
    84,463.32x = 5,709,981,013.96
  5. Step 5: Solve for x
    x = 5,709,981,013.96/84,463.32
  6. Step 6: Final answer
    x = 67,603.09

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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.