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Finding the Fourth Proportional to 388,539.56, 582,820.28 and 108,056.82

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Solution

The fourth proportional to 388,539.56, 582,820.28 and 108,056.82 is: 162,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,539.56 : 582,820.28 = 108,056.82 : x
  2. Step 2: Convert to fraction form
    388,539.56/582,820.28 = 108,056.82/x
  3. Step 3: Cross multiply
    388,539.56x = 582,820.28 × 108,056.82
  4. Step 4: Simplify right side
    388,539.56x = 62,977,706,088.31
  5. Step 5: Solve for x
    x = 62,977,706,088.31/388,539.56
  6. Step 6: Final answer
    x = 162,088.27

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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.