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Finding the Fourth Proportional to 187,274.48, 258,375.48 and 106,644.83

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Solution

The fourth proportional to 187,274.48, 258,375.48 and 106,644.83 is: 147,133.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,274.48 : 258,375.48 = 106,644.83 : x
  2. Step 2: Convert to fraction form
    187,274.48/258,375.48 = 106,644.83/x
  3. Step 3: Cross multiply
    187,274.48x = 258,375.48 × 106,644.83
  4. Step 4: Simplify right side
    187,274.48x = 27,554,409,140.77
  5. Step 5: Solve for x
    x = 27,554,409,140.77/187,274.48
  6. Step 6: Final answer
    x = 147,133.82

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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.