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Finding the Fourth Proportional to 384,592.21, 576,942.98 and 118,374.91

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Solution

The fourth proportional to 384,592.21, 576,942.98 and 118,374.91 is: 177,579.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,592.21 : 576,942.98 = 118,374.91 : x
  2. Step 2: Convert to fraction form
    384,592.21/576,942.98 = 118,374.91/x
  3. Step 3: Cross multiply
    384,592.21x = 576,942.98 × 118,374.91
  4. Step 4: Simplify right side
    384,592.21x = 68,295,571,298.40
  5. Step 5: Solve for x
    x = 68,295,571,298.40/384,592.21
  6. Step 6: Final answer
    x = 177,579.19

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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.