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Finding the Fourth Proportional to 273,450.78, 377,305.65 and 157,141.71

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Solution

The fourth proportional to 273,450.78, 377,305.65 and 157,141.71 is: 216,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,450.78 : 377,305.65 = 157,141.71 : x
  2. Step 2: Convert to fraction form
    273,450.78/377,305.65 = 157,141.71/x
  3. Step 3: Cross multiply
    273,450.78x = 377,305.65 × 157,141.71
  4. Step 4: Simplify right side
    273,450.78x = 59,290,455,033.66
  5. Step 5: Solve for x
    x = 59,290,455,033.66/273,450.78
  6. Step 6: Final answer
    x = 216,823.13

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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.