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Finding the Fourth Proportional to 303,355.90, 418,714.41 and 176,072.50

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Solution

The fourth proportional to 303,355.90, 418,714.41 and 176,072.50 is: 243,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,355.90 : 418,714.41 = 176,072.50 : x
  2. Step 2: Convert to fraction form
    303,355.90/418,714.41 = 176,072.50/x
  3. Step 3: Cross multiply
    303,355.90x = 418,714.41 × 176,072.50
  4. Step 4: Simplify right side
    303,355.90x = 73,724,092,954.73
  5. Step 5: Solve for x
    x = 73,724,092,954.73/303,355.90
  6. Step 6: Final answer
    x = 243,028.38

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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.