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Finding the Fourth Proportional to 122,803.20, 184,204.80 and 63,619.20

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Solution

The fourth proportional to 122,803.20, 184,204.80 and 63,619.20 is: 95,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,803.20 : 184,204.80 = 63,619.20 : x
  2. Step 2: Convert to fraction form
    122,803.20/184,204.80 = 63,619.20/x
  3. Step 3: Cross multiply
    122,803.20x = 184,204.80 × 63,619.20
  4. Step 4: Simplify right side
    122,803.20x = 11,718,962,012.16
  5. Step 5: Solve for x
    x = 11,718,962,012.16/122,803.20
  6. Step 6: Final answer
    x = 95,428.80

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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.