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Finding the Fourth Proportional to 72,274.20, 108,410.67 and 56,492.49

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Solution

The fourth proportional to 72,274.20, 108,410.67 and 56,492.49 is: 84,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,274.20 : 108,410.67 = 56,492.49 : x
  2. Step 2: Convert to fraction form
    72,274.20/108,410.67 = 56,492.49/x
  3. Step 3: Cross multiply
    72,274.20x = 108,410.67 × 56,492.49
  4. Step 4: Simplify right side
    72,274.20x = 6,124,388,690.87
  5. Step 5: Solve for x
    x = 6,124,388,690.87/72,274.20
  6. Step 6: Final answer
    x = 84,738.24

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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.