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Finding the Fourth Proportional to 330,274.49, 455,806.91 and 187,060.01

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Solution

The fourth proportional to 330,274.49, 455,806.91 and 187,060.01 is: 258,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,274.49 : 455,806.91 = 187,060.01 : x
  2. Step 2: Convert to fraction form
    330,274.49/455,806.91 = 187,060.01/x
  3. Step 3: Cross multiply
    330,274.49x = 455,806.91 × 187,060.01
  4. Step 4: Simplify right side
    330,274.49x = 85,263,244,207.37
  5. Step 5: Solve for x
    x = 85,263,244,207.37/330,274.49
  6. Step 6: Final answer
    x = 258,158.73

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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.