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Finding the Fourth Proportional to 136,324.56, 188,124.20 and 75,895.20

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Solution

The fourth proportional to 136,324.56, 188,124.20 and 75,895.20 is: 104,733.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,324.56 : 188,124.20 = 75,895.20 : x
  2. Step 2: Convert to fraction form
    136,324.56/188,124.20 = 75,895.20/x
  3. Step 3: Cross multiply
    136,324.56x = 188,124.20 × 75,895.20
  4. Step 4: Simplify right side
    136,324.56x = 14,277,723,783.84
  5. Step 5: Solve for x
    x = 14,277,723,783.84/136,324.56
  6. Step 6: Final answer
    x = 104,733.32

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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.