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Finding the Fourth Proportional to 103,792.35, 143,232.81 and 58,484.94

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Solution

The fourth proportional to 103,792.35, 143,232.81 and 58,484.94 is: 80,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,792.35 : 143,232.81 = 58,484.94 : x
  2. Step 2: Convert to fraction form
    103,792.35/143,232.81 = 58,484.94/x
  3. Step 3: Cross multiply
    103,792.35x = 143,232.81 × 58,484.94
  4. Step 4: Simplify right side
    103,792.35x = 8,376,961,542.44
  5. Step 5: Solve for x
    x = 8,376,961,542.44/103,792.35
  6. Step 6: Final answer
    x = 80,708.85

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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.