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Finding the Fourth Proportional to 69,018.76, 95,249.38 and 42,156.92

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Solution

The fourth proportional to 69,018.76, 95,249.38 and 42,156.92 is: 58,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,018.76 : 95,249.38 = 42,156.92 : x
  2. Step 2: Convert to fraction form
    69,018.76/95,249.38 = 42,156.92/x
  3. Step 3: Cross multiply
    69,018.76x = 95,249.38 × 42,156.92
  4. Step 4: Simplify right side
    69,018.76x = 4,015,420,492.71
  5. Step 5: Solve for x
    x = 4,015,420,492.71/69,018.76
  6. Step 6: Final answer
    x = 58,178.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.