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Finding the Fourth Proportional to 124,134.05, 170,978.68 and 95,398.73

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Solution

The fourth proportional to 124,134.05, 170,978.68 and 95,398.73 is: 131,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,134.05 : 170,978.68 = 95,398.73 : x
  2. Step 2: Convert to fraction form
    124,134.05/170,978.68 = 95,398.73/x
  3. Step 3: Cross multiply
    124,134.05x = 170,978.68 × 95,398.73
  4. Step 4: Simplify right side
    124,134.05x = 16,311,148,929.08
  5. Step 5: Solve for x
    x = 16,311,148,929.08/124,134.05
  6. Step 6: Final answer
    x = 131,399.47

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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.