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Finding the Fourth Proportional to 382,376.80, 573,548.40 and 116,131.36

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Solution

The fourth proportional to 382,376.80, 573,548.40 and 116,131.36 is: 174,191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,376.80 : 573,548.40 = 116,131.36 : x
  2. Step 2: Convert to fraction form
    382,376.80/573,548.40 = 116,131.36/x
  3. Step 3: Cross multiply
    382,376.80x = 573,548.40 × 116,131.36
  4. Step 4: Simplify right side
    382,376.80x = 66,606,955,717.82
  5. Step 5: Solve for x
    x = 66,606,955,717.82/382,376.80
  6. Step 6: Final answer
    x = 174,191.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.