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Finding the Fourth Proportional to 382,053.20, 573,079.80 and 115,800.53

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Solution

The fourth proportional to 382,053.20, 573,079.80 and 115,800.53 is: 173,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,053.20 : 573,079.80 = 115,800.53 : x
  2. Step 2: Convert to fraction form
    382,053.20/573,079.80 = 115,800.53/x
  3. Step 3: Cross multiply
    382,053.20x = 573,079.80 × 115,800.53
  4. Step 4: Simplify right side
    382,053.20x = 66,362,944,572.29
  5. Step 5: Solve for x
    x = 66,362,944,572.29/382,053.20
  6. Step 6: Final answer
    x = 173,700.80

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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.