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Finding the Fourth Proportional to 124,479.98, 171,761.55 and 118,174.94

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Solution

The fourth proportional to 124,479.98, 171,761.55 and 118,174.94 is: 163,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,479.98 : 171,761.55 = 118,174.94 : x
  2. Step 2: Convert to fraction form
    124,479.98/171,761.55 = 118,174.94/x
  3. Step 3: Cross multiply
    124,479.98x = 171,761.55 × 118,174.94
  4. Step 4: Simplify right side
    124,479.98x = 20,297,910,865.56
  5. Step 5: Solve for x
    x = 20,297,910,865.56/124,479.98
  6. Step 6: Final answer
    x = 163,061.65

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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.