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Finding the Fourth Proportional to 388,592.65, 582,967.55 and 163,953.64

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Solution

The fourth proportional to 388,592.65, 582,967.55 and 163,953.64 is: 245,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,592.65 : 582,967.55 = 163,953.64 : x
  2. Step 2: Convert to fraction form
    388,592.65/582,967.55 = 163,953.64/x
  3. Step 3: Cross multiply
    388,592.65x = 582,967.55 × 163,953.64
  4. Step 4: Simplify right side
    388,592.65x = 95,579,648,089.78
  5. Step 5: Solve for x
    x = 95,579,648,089.78/388,592.65
  6. Step 6: Final answer
    x = 245,963.61

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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.