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Finding the Fourth Proportional to 369,449.60, 554,093.96 and 99,571.44

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Solution

The fourth proportional to 369,449.60, 554,093.96 and 99,571.44 is: 149,335.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,449.60 : 554,093.96 = 99,571.44 : x
  2. Step 2: Convert to fraction form
    369,449.60/554,093.96 = 99,571.44/x
  3. Step 3: Cross multiply
    369,449.60x = 554,093.96 × 99,571.44
  4. Step 4: Simplify right side
    369,449.60x = 55,171,933,492.50
  5. Step 5: Solve for x
    x = 55,171,933,492.50/369,449.60
  6. Step 6: Final answer
    x = 149,335.48

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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.