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Finding the Fourth Proportional to 388,233.88, 582,358.88 and 103,924.08

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Solution

The fourth proportional to 388,233.88, 582,358.88 and 103,924.08 is: 155,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,233.88 : 582,358.88 = 103,924.08 : x
  2. Step 2: Convert to fraction form
    388,233.88/582,358.88 = 103,924.08/x
  3. Step 3: Cross multiply
    388,233.88x = 582,358.88 × 103,924.08
  4. Step 4: Simplify right side
    388,233.88x = 60,521,110,833.83
  5. Step 5: Solve for x
    x = 60,521,110,833.83/388,233.88
  6. Step 6: Final answer
    x = 155,888.28

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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.