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Finding the Fourth Proportional to 105,810.44, 158,725.88 and 30,928.87

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Solution

The fourth proportional to 105,810.44, 158,725.88 and 30,928.87 is: 46,396.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,810.44 : 158,725.88 = 30,928.87 : x
  2. Step 2: Convert to fraction form
    105,810.44/158,725.88 = 30,928.87/x
  3. Step 3: Cross multiply
    105,810.44x = 158,725.88 × 30,928.87
  4. Step 4: Simplify right side
    105,810.44x = 4,909,212,267.90
  5. Step 5: Solve for x
    x = 4,909,212,267.90/105,810.44
  6. Step 6: Final answer
    x = 46,396.30

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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.