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Finding the Fourth Proportional to 187,586.75, 258,894.42 and 106,995.80

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Solution

The fourth proportional to 187,586.75, 258,894.42 and 106,995.80 is: 147,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,586.75 : 258,894.42 = 106,995.80 : x
  2. Step 2: Convert to fraction form
    187,586.75/258,894.42 = 106,995.80/x
  3. Step 3: Cross multiply
    187,586.75x = 258,894.42 × 106,995.80
  4. Step 4: Simplify right side
    187,586.75x = 27,700,615,583.44
  5. Step 5: Solve for x
    x = 27,700,615,583.44/187,586.75
  6. Step 6: Final answer
    x = 147,668.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.