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Finding the Fourth Proportional to 186,752.16, 279,997.04 and 68,408.16

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Solution

The fourth proportional to 186,752.16, 279,997.04 and 68,408.16 is: 102,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,752.16 : 279,997.04 = 68,408.16 : x
  2. Step 2: Convert to fraction form
    186,752.16/279,997.04 = 68,408.16/x
  3. Step 3: Cross multiply
    186,752.16x = 279,997.04 × 68,408.16
  4. Step 4: Simplify right side
    186,752.16x = 19,154,082,311.85
  5. Step 5: Solve for x
    x = 19,154,082,311.85/186,752.16
  6. Step 6: Final answer
    x = 102,564.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.