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Finding the Fourth Proportional to 248,604.48, 372,617.40 and 142,063.12

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Solution

The fourth proportional to 248,604.48, 372,617.40 and 142,063.12 is: 212,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,604.48 : 372,617.40 = 142,063.12 : x
  2. Step 2: Convert to fraction form
    248,604.48/372,617.40 = 142,063.12/x
  3. Step 3: Cross multiply
    248,604.48x = 372,617.40 × 142,063.12
  4. Step 4: Simplify right side
    248,604.48x = 52,935,190,410.29
  5. Step 5: Solve for x
    x = 52,935,190,410.29/248,604.48
  6. Step 6: Final answer
    x = 212,929.35

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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.