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Finding the Fourth Proportional to 304,223.44, 456,329.88 and 90,991.84

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Solution

The fourth proportional to 304,223.44, 456,329.88 and 90,991.84 is: 136,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,223.44 : 456,329.88 = 90,991.84 : x
  2. Step 2: Convert to fraction form
    304,223.44/456,329.88 = 90,991.84/x
  3. Step 3: Cross multiply
    304,223.44x = 456,329.88 × 90,991.84
  4. Step 4: Simplify right side
    304,223.44x = 41,522,295,428.18
  5. Step 5: Solve for x
    x = 41,522,295,428.18/304,223.44
  6. Step 6: Final answer
    x = 136,486.18

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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.