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Finding the Fourth Proportional to 113,574.75, 156,734.21 and 62,589.30

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Solution

The fourth proportional to 113,574.75, 156,734.21 and 62,589.30 is: 86,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,574.75 : 156,734.21 = 62,589.30 : x
  2. Step 2: Convert to fraction form
    113,574.75/156,734.21 = 62,589.30/x
  3. Step 3: Cross multiply
    113,574.75x = 156,734.21 × 62,589.30
  4. Step 4: Simplify right side
    113,574.75x = 9,809,884,177.01
  5. Step 5: Solve for x
    x = 9,809,884,177.01/113,574.75
  6. Step 6: Final answer
    x = 86,373.81

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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.