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Finding the Fourth Proportional to 274,049.16, 411,025.19 and 74,385.07

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Solution

The fourth proportional to 274,049.16, 411,025.19 and 74,385.07 is: 111,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,049.16 : 411,025.19 = 74,385.07 : x
  2. Step 2: Convert to fraction form
    274,049.16/411,025.19 = 74,385.07/x
  3. Step 3: Cross multiply
    274,049.16x = 411,025.19 × 74,385.07
  4. Step 4: Simplify right side
    274,049.16x = 30,574,136,130.43
  5. Step 5: Solve for x
    x = 30,574,136,130.43/274,049.16
  6. Step 6: Final answer
    x = 111,564.42

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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.