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Finding the Fourth Proportional to 49,223.70, 73,726.20 and 42,662.70

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Solution

The fourth proportional to 49,223.70, 73,726.20 and 42,662.70 is: 63,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,223.70 : 73,726.20 = 42,662.70 : x
  2. Step 2: Convert to fraction form
    49,223.70/73,726.20 = 42,662.70/x
  3. Step 3: Cross multiply
    49,223.70x = 73,726.20 × 42,662.70
  4. Step 4: Simplify right side
    49,223.70x = 3,145,358,752.74
  5. Step 5: Solve for x
    x = 3,145,358,752.74/49,223.70
  6. Step 6: Final answer
    x = 63,899.28

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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.