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Finding the Fourth Proportional to 106,860.40, 160,231.32 and 43,724.81

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Solution

The fourth proportional to 106,860.40, 160,231.32 and 43,724.81 is: 65,562.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,860.40 : 160,231.32 = 43,724.81 : x
  2. Step 2: Convert to fraction form
    106,860.40/160,231.32 = 43,724.81/x
  3. Step 3: Cross multiply
    106,860.40x = 160,231.32 × 43,724.81
  4. Step 4: Simplify right side
    106,860.40x = 7,006,084,423.63
  5. Step 5: Solve for x
    x = 7,006,084,423.63/106,860.40
  6. Step 6: Final answer
    x = 65,562.96

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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.