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Finding the Fourth Proportional to 388,070.79, 582,106.33 and 174,589.39

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Solution

The fourth proportional to 388,070.79, 582,106.33 and 174,589.39 is: 261,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,070.79 : 582,106.33 = 174,589.39 : x
  2. Step 2: Convert to fraction form
    388,070.79/582,106.33 = 174,589.39/x
  3. Step 3: Cross multiply
    388,070.79x = 582,106.33 × 174,589.39
  4. Step 4: Simplify right side
    388,070.79x = 101,629,589,069.84
  5. Step 5: Solve for x
    x = 101,629,589,069.84/388,070.79
  6. Step 6: Final answer
    x = 261,884.15

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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.