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Finding the Fourth Proportional to 274,554.28, 411,826.14 and 74,871.40

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Solution

The fourth proportional to 274,554.28, 411,826.14 and 74,871.40 is: 112,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,554.28 : 411,826.14 = 74,871.40 : x
  2. Step 2: Convert to fraction form
    274,554.28/411,826.14 = 74,871.40/x
  3. Step 3: Cross multiply
    274,554.28x = 411,826.14 × 74,871.40
  4. Step 4: Simplify right side
    274,554.28x = 30,833,999,658.40
  5. Step 5: Solve for x
    x = 30,833,999,658.40/274,554.28
  6. Step 6: Final answer
    x = 112,305.66

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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.