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Finding the Fourth Proportional to 414,178.49, 621,278.30 and 114,661.65

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Solution

The fourth proportional to 414,178.49, 621,278.30 and 114,661.65 is: 171,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,178.49 : 621,278.30 = 114,661.65 : x
  2. Step 2: Convert to fraction form
    414,178.49/621,278.30 = 114,661.65/x
  3. Step 3: Cross multiply
    414,178.49x = 621,278.30 × 114,661.65
  4. Step 4: Simplify right side
    414,178.49x = 71,236,791,307.50
  5. Step 5: Solve for x
    x = 71,236,791,307.50/414,178.49
  6. Step 6: Final answer
    x = 171,995.39

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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.