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Finding the Fourth Proportional to 329,865, 455,213.82 and 186,621.96

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Solution

The fourth proportional to 329,865, 455,213.82 and 186,621.96 is: 257,538.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,865 : 455,213.82 = 186,621.96 : x
  2. Step 2: Convert to fraction form
    329,865/455,213.82 = 186,621.96/x
  3. Step 3: Cross multiply
    329,865x = 455,213.82 × 186,621.96
  4. Step 4: Simplify right side
    329,865x = 84,952,895,307.49
  5. Step 5: Solve for x
    x = 84,952,895,307.49/329,865
  6. Step 6: Final answer
    x = 257,538.37

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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.