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Finding the Fourth Proportional to 384,382.12, 576,628.30 and 118,164.98

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Solution

The fourth proportional to 384,382.12, 576,628.30 and 118,164.98 is: 177,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,382.12 : 576,628.30 = 118,164.98 : x
  2. Step 2: Convert to fraction form
    384,382.12/576,628.30 = 118,164.98/x
  3. Step 3: Cross multiply
    384,382.12x = 576,628.30 × 118,164.98
  4. Step 4: Simplify right side
    384,382.12x = 68,137,271,536.93
  5. Step 5: Solve for x
    x = 68,137,271,536.93/384,382.12
  6. Step 6: Final answer
    x = 177,264.41

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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.