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Finding the Fourth Proportional to 116,640.88, 175,038.54 and 64,087

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Solution

The fourth proportional to 116,640.88, 175,038.54 and 64,087 is: 96,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,640.88 : 175,038.54 = 64,087 : x
  2. Step 2: Convert to fraction form
    116,640.88/175,038.54 = 64,087/x
  3. Step 3: Cross multiply
    116,640.88x = 175,038.54 × 64,087
  4. Step 4: Simplify right side
    116,640.88x = 11,217,694,912.98
  5. Step 5: Solve for x
    x = 11,217,694,912.98/116,640.88
  6. Step 6: Final answer
    x = 96,172.93

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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.