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Finding the Fourth Proportional to 105,615.92, 158,423.73 and 35,544.44

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Solution

The fourth proportional to 105,615.92, 158,423.73 and 35,544.44 is: 53,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,615.92 : 158,423.73 = 35,544.44 : x
  2. Step 2: Convert to fraction form
    105,615.92/158,423.73 = 35,544.44/x
  3. Step 3: Cross multiply
    105,615.92x = 158,423.73 × 35,544.44
  4. Step 4: Simplify right side
    105,615.92x = 5,631,081,973.44
  5. Step 5: Solve for x
    x = 5,631,081,973.44/105,615.92
  6. Step 6: Final answer
    x = 53,316.60

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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.