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Finding the Fourth Proportional to 95,861.70, 143,792.55 and 54,389.70

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Solution

The fourth proportional to 95,861.70, 143,792.55 and 54,389.70 is: 81,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,861.70 : 143,792.55 = 54,389.70 : x
  2. Step 2: Convert to fraction form
    95,861.70/143,792.55 = 54,389.70/x
  3. Step 3: Cross multiply
    95,861.70x = 143,792.55 × 54,389.70
  4. Step 4: Simplify right side
    95,861.70x = 7,820,833,656.74
  5. Step 5: Solve for x
    x = 7,820,833,656.74/95,861.70
  6. Step 6: Final answer
    x = 81,584.55

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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.