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Finding the Fourth Proportional to 273,896.27, 377,969.79 and 153,038.55

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Solution

The fourth proportional to 273,896.27, 377,969.79 and 153,038.55 is: 211,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,896.27 : 377,969.79 = 153,038.55 : x
  2. Step 2: Convert to fraction form
    273,896.27/377,969.79 = 153,038.55/x
  3. Step 3: Cross multiply
    273,896.27x = 377,969.79 × 153,038.55
  4. Step 4: Simplify right side
    273,896.27x = 57,843,948,605.40
  5. Step 5: Solve for x
    x = 57,843,948,605.40/273,896.27
  6. Step 6: Final answer
    x = 211,189.25

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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.