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Finding the Fourth Proportional to 384,946.65, 577,365.30 and 132,238.80

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Solution

The fourth proportional to 384,946.65, 577,365.30 and 132,238.80 is: 198,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,946.65 : 577,365.30 = 132,238.80 : x
  2. Step 2: Convert to fraction form
    384,946.65/577,365.30 = 132,238.80/x
  3. Step 3: Cross multiply
    384,946.65x = 577,365.30 × 132,238.80
  4. Step 4: Simplify right side
    384,946.65x = 76,350,094,433.64
  5. Step 5: Solve for x
    x = 76,350,094,433.64/384,946.65
  6. Step 6: Final answer
    x = 198,339.42

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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.