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Finding the Fourth Proportional to 105,624.80, 158,494.80 and 43,301.60

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Solution

The fourth proportional to 105,624.80, 158,494.80 and 43,301.60 is: 64,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,624.80 : 158,494.80 = 43,301.60 : x
  2. Step 2: Convert to fraction form
    105,624.80/158,494.80 = 43,301.60/x
  3. Step 3: Cross multiply
    105,624.80x = 158,494.80 × 43,301.60
  4. Step 4: Simplify right side
    105,624.80x = 6,863,078,431.68
  5. Step 5: Solve for x
    x = 6,863,078,431.68/105,624.80
  6. Step 6: Final answer
    x = 64,976.01

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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.