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Finding the Fourth Proportional to 277,717.60, 416,576.40 and 67,355.20

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Solution

The fourth proportional to 277,717.60, 416,576.40 and 67,355.20 is: 101,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,717.60 : 416,576.40 = 67,355.20 : x
  2. Step 2: Convert to fraction form
    277,717.60/416,576.40 = 67,355.20/x
  3. Step 3: Cross multiply
    277,717.60x = 416,576.40 × 67,355.20
  4. Step 4: Simplify right side
    277,717.60x = 28,058,586,737.28
  5. Step 5: Solve for x
    x = 28,058,586,737.28/277,717.60
  6. Step 6: Final answer
    x = 101,032.80

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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.