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Finding the Fourth Proportional to 105,525.54, 158,250.93 and 38,947.79

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Solution

The fourth proportional to 105,525.54, 158,250.93 and 38,947.79 is: 58,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.54 : 158,250.93 = 38,947.79 : x
  2. Step 2: Convert to fraction form
    105,525.54/158,250.93 = 38,947.79/x
  3. Step 3: Cross multiply
    105,525.54x = 158,250.93 × 38,947.79
  4. Step 4: Simplify right side
    105,525.54x = 6,163,523,197.69
  5. Step 5: Solve for x
    x = 6,163,523,197.69/105,525.54
  6. Step 6: Final answer
    x = 58,407.88

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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.