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Finding the Fourth Proportional to 388,053.98, 582,081.12 and 174,572.53

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Solution

The fourth proportional to 388,053.98, 582,081.12 and 174,572.53 is: 261,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,053.98 : 582,081.12 = 174,572.53 : x
  2. Step 2: Convert to fraction form
    388,053.98/582,081.12 = 174,572.53/x
  3. Step 3: Cross multiply
    388,053.98x = 582,081.12 × 174,572.53
  4. Step 4: Simplify right side
    388,053.98x = 101,615,373,783.63
  5. Step 5: Solve for x
    x = 101,615,373,783.63/388,053.98
  6. Step 6: Final answer
    x = 261,858.87

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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.