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Finding the Fourth Proportional to 274,553.16, 377,739.90 and 242,146.68

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Solution

The fourth proportional to 274,553.16, 377,739.90 and 242,146.68 is: 333,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,553.16 : 377,739.90 = 242,146.68 : x
  2. Step 2: Convert to fraction form
    274,553.16/377,739.90 = 242,146.68/x
  3. Step 3: Cross multiply
    274,553.16x = 377,739.90 × 242,146.68
  4. Step 4: Simplify right side
    274,553.16x = 91,468,462,688.53
  5. Step 5: Solve for x
    x = 91,468,462,688.53/274,553.16
  6. Step 6: Final answer
    x = 333,153.92

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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.