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Finding the Fourth Proportional to 308,698.85, 463,056.40 and 84,063.88

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Solution

The fourth proportional to 308,698.85, 463,056.40 and 84,063.88 is: 126,098.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,698.85 : 463,056.40 = 84,063.88 : x
  2. Step 2: Convert to fraction form
    308,698.85/463,056.40 = 84,063.88/x
  3. Step 3: Cross multiply
    308,698.85x = 463,056.40 × 84,063.88
  4. Step 4: Simplify right side
    308,698.85x = 38,926,315,249.18
  5. Step 5: Solve for x
    x = 38,926,315,249.18/308,698.85
  6. Step 6: Final answer
    x = 126,098.03

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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.