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Finding the Fourth Proportional to 105,410.52, 158,114.92 and 43,037.28

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Solution

The fourth proportional to 105,410.52, 158,114.92 and 43,037.28 is: 64,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,410.52 : 158,114.92 = 43,037.28 : x
  2. Step 2: Convert to fraction form
    105,410.52/158,114.92 = 43,037.28/x
  3. Step 3: Cross multiply
    105,410.52x = 158,114.92 × 43,037.28
  4. Step 4: Simplify right side
    105,410.52x = 6,804,836,084.22
  5. Step 5: Solve for x
    x = 6,804,836,084.22/105,410.52
  6. Step 6: Final answer
    x = 64,555.57

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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.