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Finding the Fourth Proportional to 384,401.77, 576,657.69 and 118,184.64

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Solution

The fourth proportional to 384,401.77, 576,657.69 and 118,184.64 is: 177,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,401.77 : 576,657.69 = 118,184.64 : x
  2. Step 2: Convert to fraction form
    384,401.77/576,657.69 = 118,184.64/x
  3. Step 3: Cross multiply
    384,401.77x = 576,657.69 × 118,184.64
  4. Step 4: Simplify right side
    384,401.77x = 68,152,081,052.69
  5. Step 5: Solve for x
    x = 68,152,081,052.69/384,401.77
  6. Step 6: Final answer
    x = 177,293.88

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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.