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Finding the Fourth Proportional to 113,616.56, 156,797.70 and 62,629.22

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Solution

The fourth proportional to 113,616.56, 156,797.70 and 62,629.22 is: 86,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,616.56 : 156,797.70 = 62,629.22 : x
  2. Step 2: Convert to fraction form
    113,616.56/156,797.70 = 62,629.22/x
  3. Step 3: Cross multiply
    113,616.56x = 156,797.70 × 62,629.22
  4. Step 4: Simplify right side
    113,616.56x = 9,820,117,648.79
  5. Step 5: Solve for x
    x = 9,820,117,648.79/113,616.56
  6. Step 6: Final answer
    x = 86,432.10

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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.