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Finding the Fourth Proportional to 329,862, 455,209.68 and 186,618.96

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Solution

The fourth proportional to 329,862, 455,209.68 and 186,618.96 is: 257,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,862 : 455,209.68 = 186,618.96 : x
  2. Step 2: Convert to fraction form
    329,862/455,209.68 = 186,618.96/x
  3. Step 3: Cross multiply
    329,862x = 455,209.68 × 186,618.96
  4. Step 4: Simplify right side
    329,862x = 84,950,757,063.53
  5. Step 5: Solve for x
    x = 84,950,757,063.53/329,862
  6. Step 6: Final answer
    x = 257,534.23

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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.