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Finding the Fourth Proportional to 104,672.45, 144,449.04 and 56,926.85

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Solution

The fourth proportional to 104,672.45, 144,449.04 and 56,926.85 is: 78,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,672.45 : 144,449.04 = 56,926.85 : x
  2. Step 2: Convert to fraction form
    104,672.45/144,449.04 = 56,926.85/x
  3. Step 3: Cross multiply
    104,672.45x = 144,449.04 × 56,926.85
  4. Step 4: Simplify right side
    104,672.45x = 8,223,028,832.72
  5. Step 5: Solve for x
    x = 8,223,028,832.72/104,672.45
  6. Step 6: Final answer
    x = 78,559.63

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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.