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Finding the Fourth Proportional to 304,530.68, 420,155.72 and 177,181.67

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Solution

The fourth proportional to 304,530.68, 420,155.72 and 177,181.67 is: 244,454.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,530.68 : 420,155.72 = 177,181.67 : x
  2. Step 2: Convert to fraction form
    304,530.68/420,155.72 = 177,181.67/x
  3. Step 3: Cross multiply
    304,530.68x = 420,155.72 × 177,181.67
  4. Step 4: Simplify right side
    304,530.68x = 74,443,890,028.87
  5. Step 5: Solve for x
    x = 74,443,890,028.87/304,530.68
  6. Step 6: Final answer
    x = 244,454.49

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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.