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Finding the Fourth Proportional to 242,449.60, 334,557.78 and 140,478.94

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Solution

The fourth proportional to 242,449.60, 334,557.78 and 140,478.94 is: 193,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,449.60 : 334,557.78 = 140,478.94 : x
  2. Step 2: Convert to fraction form
    242,449.60/334,557.78 = 140,478.94/x
  3. Step 3: Cross multiply
    242,449.60x = 334,557.78 × 140,478.94
  4. Step 4: Simplify right side
    242,449.60x = 46,998,322,303.15
  5. Step 5: Solve for x
    x = 46,998,322,303.15/242,449.60
  6. Step 6: Final answer
    x = 193,847.80

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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.