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Finding the Fourth Proportional to 303,420.06, 418,705.48 and 174,267.69

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Solution

The fourth proportional to 303,420.06, 418,705.48 and 174,267.69 is: 240,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,420.06 : 418,705.48 = 174,267.69 : x
  2. Step 2: Convert to fraction form
    303,420.06/418,705.48 = 174,267.69/x
  3. Step 3: Cross multiply
    303,420.06x = 418,705.48 × 174,267.69
  4. Step 4: Simplify right side
    303,420.06x = 72,966,836,789.94
  5. Step 5: Solve for x
    x = 72,966,836,789.94/303,420.06
  6. Step 6: Final answer
    x = 240,481.25

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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.