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Finding the Fourth Proportional to 106,814.94, 160,220.66 and 43,621.17

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Solution

The fourth proportional to 106,814.94, 160,220.66 and 43,621.17 is: 65,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,814.94 : 160,220.66 = 43,621.17 : x
  2. Step 2: Convert to fraction form
    106,814.94/160,220.66 = 43,621.17/x
  3. Step 3: Cross multiply
    106,814.94x = 160,220.66 × 43,621.17
  4. Step 4: Simplify right side
    106,814.94x = 6,989,012,429.27
  5. Step 5: Solve for x
    x = 6,989,012,429.27/106,814.94
  6. Step 6: Final answer
    x = 65,431.04

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1.5x scale

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.