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Finding the Fourth Proportional to 248,408.89, 342,848.97 and 146,428.29

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Solution

The fourth proportional to 248,408.89, 342,848.97 and 146,428.29 is: 202,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,408.89 : 342,848.97 = 146,428.29 : x
  2. Step 2: Convert to fraction form
    248,408.89/342,848.97 = 146,428.29/x
  3. Step 3: Cross multiply
    248,408.89x = 342,848.97 × 146,428.29
  4. Step 4: Simplify right side
    248,408.89x = 50,202,788,405.36
  5. Step 5: Solve for x
    x = 50,202,788,405.36/248,408.89
  6. Step 6: Final answer
    x = 202,097.39

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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.