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Finding the Fourth Proportional to 104,472.88, 144,175.08 and 56,728.24

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Solution

The fourth proportional to 104,472.88, 144,175.08 and 56,728.24 is: 78,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,472.88 : 144,175.08 = 56,728.24 : x
  2. Step 2: Convert to fraction form
    104,472.88/144,175.08 = 56,728.24/x
  3. Step 3: Cross multiply
    104,472.88x = 144,175.08 × 56,728.24
  4. Step 4: Simplify right side
    104,472.88x = 8,178,798,540.26
  5. Step 5: Solve for x
    x = 8,178,798,540.26/104,472.88
  6. Step 6: Final answer
    x = 78,286.33

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1.5x scale

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.