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Finding the Fourth Proportional to 308,698.05, 463,192.65 and 109,112.43

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Solution

The fourth proportional to 308,698.05, 463,192.65 and 109,112.43 is: 163,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,698.05 : 463,192.65 = 109,112.43 : x
  2. Step 2: Convert to fraction form
    308,698.05/463,192.65 = 109,112.43/x
  3. Step 3: Cross multiply
    308,698.05x = 463,192.65 × 109,112.43
  4. Step 4: Simplify right side
    308,698.05x = 50,540,075,599.64
  5. Step 5: Solve for x
    x = 50,540,075,599.64/308,698.05
  6. Step 6: Final answer
    x = 163,720.10

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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.