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Finding the Fourth Proportional to 103,586.94, 142,949.18 and 58,874.94

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Solution

The fourth proportional to 103,586.94, 142,949.18 and 58,874.94 is: 81,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,586.94 : 142,949.18 = 58,874.94 : x
  2. Step 2: Convert to fraction form
    103,586.94/142,949.18 = 58,874.94/x
  3. Step 3: Cross multiply
    103,586.94x = 142,949.18 × 58,874.94
  4. Step 4: Simplify right side
    103,586.94x = 8,416,124,395.55
  5. Step 5: Solve for x
    x = 8,416,124,395.55/103,586.94
  6. Step 6: Final answer
    x = 81,246.96

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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.