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Finding the Fourth Proportional to 66,351.94, 99,627.74 and 57,092.83

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Solution

The fourth proportional to 66,351.94, 99,627.74 and 57,092.83 is: 85,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,351.94 : 99,627.74 = 57,092.83 : x
  2. Step 2: Convert to fraction form
    66,351.94/99,627.74 = 57,092.83/x
  3. Step 3: Cross multiply
    66,351.94x = 99,627.74 × 57,092.83
  4. Step 4: Simplify right side
    66,351.94x = 5,688,029,623.10
  5. Step 5: Solve for x
    x = 5,688,029,623.10/66,351.94
  6. Step 6: Final answer
    x = 85,725.14

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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.