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Finding the Fourth Proportional to 308,097.23, 425,101.30 and 178,958.96

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Solution

The fourth proportional to 308,097.23, 425,101.30 and 178,958.96 is: 246,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,097.23 : 425,101.30 = 178,958.96 : x
  2. Step 2: Convert to fraction form
    308,097.23/425,101.30 = 178,958.96/x
  3. Step 3: Cross multiply
    308,097.23x = 425,101.30 × 178,958.96
  4. Step 4: Simplify right side
    308,097.23x = 76,075,688,807.87
  5. Step 5: Solve for x
    x = 76,075,688,807.87/308,097.23
  6. Step 6: Final answer
    x = 246,921.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.