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Finding the Fourth Proportional to 85,653.62, 118,236 and 58,064.61

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Solution

The fourth proportional to 85,653.62, 118,236 and 58,064.61 is: 80,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,653.62 : 118,236 = 58,064.61 : x
  2. Step 2: Convert to fraction form
    85,653.62/118,236 = 58,064.61/x
  3. Step 3: Cross multiply
    85,653.62x = 118,236 × 58,064.61
  4. Step 4: Simplify right side
    85,653.62x = 6,865,327,227.96
  5. Step 5: Solve for x
    x = 6,865,327,227.96/85,653.62
  6. Step 6: Final answer
    x = 80,152.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.