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Finding the Fourth Proportional to 105,630.65, 158,471.93 and 30,751.44

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Solution

The fourth proportional to 105,630.65, 158,471.93 and 30,751.44 is: 46,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,630.65 : 158,471.93 = 30,751.44 : x
  2. Step 2: Convert to fraction form
    105,630.65/158,471.93 = 30,751.44/x
  3. Step 3: Cross multiply
    105,630.65x = 158,471.93 × 30,751.44
  4. Step 4: Simplify right side
    105,630.65x = 4,873,239,893.32
  5. Step 5: Solve for x
    x = 4,873,239,893.32/105,630.65
  6. Step 6: Final answer
    x = 46,134.72

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1.5x scale

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.