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Finding the Fourth Proportional to 330,295.36, 455,818.36 and 187,052.32

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Solution

The fourth proportional to 330,295.36, 455,818.36 and 187,052.32 is: 258,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,295.36 : 455,818.36 = 187,052.32 : x
  2. Step 2: Convert to fraction form
    330,295.36/455,818.36 = 187,052.32/x
  3. Step 3: Cross multiply
    330,295.36x = 455,818.36 × 187,052.32
  4. Step 4: Simplify right side
    330,295.36x = 85,261,881,736.60
  5. Step 5: Solve for x
    x = 85,261,881,736.60/330,295.36
  6. Step 6: Final answer
    x = 258,138.30

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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.