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Finding the Fourth Proportional to 113,479.84, 156,600.90 and 62,491.54

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Solution

The fourth proportional to 113,479.84, 156,600.90 and 62,491.54 is: 86,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,479.84 : 156,600.90 = 62,491.54 : x
  2. Step 2: Convert to fraction form
    113,479.84/156,600.90 = 62,491.54/x
  3. Step 3: Cross multiply
    113,479.84x = 156,600.90 × 62,491.54
  4. Step 4: Simplify right side
    113,479.84x = 9,786,231,406.39
  5. Step 5: Solve for x
    x = 9,786,231,406.39/113,479.84
  6. Step 6: Final answer
    x = 86,237.62

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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.