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Finding the Fourth Proportional to 114,761.80, 172,142.84 and 35,876.44

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Solution

The fourth proportional to 114,761.80, 172,142.84 and 35,876.44 is: 53,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,761.80 : 172,142.84 = 35,876.44 : x
  2. Step 2: Convert to fraction form
    114,761.80/172,142.84 = 35,876.44/x
  3. Step 3: Cross multiply
    114,761.80x = 172,142.84 × 35,876.44
  4. Step 4: Simplify right side
    114,761.80x = 6,175,872,270.69
  5. Step 5: Solve for x
    x = 6,175,872,270.69/114,761.80
  6. Step 6: Final answer
    x = 53,814.70

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1.5x scale

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.