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Finding the Fourth Proportional to 114,773.88, 172,151.10 and 39,874.80

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Solution

The fourth proportional to 114,773.88, 172,151.10 and 39,874.80 is: 59,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,773.88 : 172,151.10 = 39,874.80 : x
  2. Step 2: Convert to fraction form
    114,773.88/172,151.10 = 39,874.80/x
  3. Step 3: Cross multiply
    114,773.88x = 172,151.10 × 39,874.80
  4. Step 4: Simplify right side
    114,773.88x = 6,864,490,682.28
  5. Step 5: Solve for x
    x = 6,864,490,682.28/114,773.88
  6. Step 6: Final answer
    x = 59,808.82

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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.