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Finding the Fourth Proportional to 116,690.85, 161,035.43 and 68,944.10

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Solution

The fourth proportional to 116,690.85, 161,035.43 and 68,944.10 is: 95,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,690.85 : 161,035.43 = 68,944.10 : x
  2. Step 2: Convert to fraction form
    116,690.85/161,035.43 = 68,944.10/x
  3. Step 3: Cross multiply
    116,690.85x = 161,035.43 × 68,944.10
  4. Step 4: Simplify right side
    116,690.85x = 11,102,441,639.57
  5. Step 5: Solve for x
    x = 11,102,441,639.57/116,690.85
  6. Step 6: Final answer
    x = 95,144.06

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1.5x scale

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.