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Finding the Fourth Proportional to 242,490.66, 363,790.26 and 74,025.96

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Solution

The fourth proportional to 242,490.66, 363,790.26 and 74,025.96 is: 111,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,490.66 : 363,790.26 = 74,025.96 : x
  2. Step 2: Convert to fraction form
    242,490.66/363,790.26 = 74,025.96/x
  3. Step 3: Cross multiply
    242,490.66x = 363,790.26 × 74,025.96
  4. Step 4: Simplify right side
    242,490.66x = 26,929,923,235.15
  5. Step 5: Solve for x
    x = 26,929,923,235.15/242,490.66
  6. Step 6: Final answer
    x = 111,055.51

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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.