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Finding the Fourth Proportional to 125,096.96, 172,632.32 and 68,507.52

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Solution

The fourth proportional to 125,096.96, 172,632.32 and 68,507.52 is: 94,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,096.96 : 172,632.32 = 68,507.52 : x
  2. Step 2: Convert to fraction form
    125,096.96/172,632.32 = 68,507.52/x
  3. Step 3: Cross multiply
    125,096.96x = 172,632.32 × 68,507.52
  4. Step 4: Simplify right side
    125,096.96x = 11,826,612,115.05
  5. Step 5: Solve for x
    x = 11,826,612,115.05/125,096.96
  6. Step 6: Final answer
    x = 94,539.56

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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.