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Finding the Fourth Proportional to 113,569.44, 156,728.94 and 63,268.44

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Solution

The fourth proportional to 113,569.44, 156,728.94 and 63,268.44 is: 87,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,569.44 : 156,728.94 = 63,268.44 : x
  2. Step 2: Convert to fraction form
    113,569.44/156,728.94 = 63,268.44/x
  3. Step 3: Cross multiply
    113,569.44x = 156,728.94 × 63,268.44
  4. Step 4: Simplify right side
    113,569.44x = 9,915,995,536.65
  5. Step 5: Solve for x
    x = 9,915,995,536.65/113,569.44
  6. Step 6: Final answer
    x = 87,312.18

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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.