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Finding the Fourth Proportional to 388,517.96, 582,809.92 and 108,035.22

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Solution

The fourth proportional to 388,517.96, 582,809.92 and 108,035.22 is: 162,062.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,517.96 : 582,809.92 = 108,035.22 : x
  2. Step 2: Convert to fraction form
    388,517.96/582,809.92 = 108,035.22/x
  3. Step 3: Cross multiply
    388,517.96x = 582,809.92 × 108,035.22
  4. Step 4: Simplify right side
    388,517.96x = 62,963,997,925.38
  5. Step 5: Solve for x
    x = 62,963,997,925.38/388,517.96
  6. Step 6: Final answer
    x = 162,062.00

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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.