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Finding the Fourth Proportional to 384,392.60, 576,644.03 and 118,175.47

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Solution

The fourth proportional to 384,392.60, 576,644.03 and 118,175.47 is: 177,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,392.60 : 576,644.03 = 118,175.47 : x
  2. Step 2: Convert to fraction form
    384,392.60/576,644.03 = 118,175.47/x
  3. Step 3: Cross multiply
    384,392.60x = 576,644.03 × 118,175.47
  4. Step 4: Simplify right side
    384,392.60x = 68,145,176,089.29
  5. Step 5: Solve for x
    x = 68,145,176,089.29/384,392.60
  6. Step 6: Final answer
    x = 177,280.15

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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.