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Finding the Fourth Proportional to 382,060.47, 573,057.68 and 129,335.57

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Solution

The fourth proportional to 382,060.47, 573,057.68 and 129,335.57 is: 193,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,060.47 : 573,057.68 = 129,335.57 : x
  2. Step 2: Convert to fraction form
    382,060.47/573,057.68 = 129,335.57/x
  3. Step 3: Cross multiply
    382,060.47x = 573,057.68 × 129,335.57
  4. Step 4: Simplify right side
    382,060.47x = 74,116,738,173.71
  5. Step 5: Solve for x
    x = 74,116,738,173.71/382,060.47
  6. Step 6: Final answer
    x = 193,992.17

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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.