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Finding the Fourth Proportional to 248,087.61, 342,481.21 and 166,385.99

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Solution

The fourth proportional to 248,087.61, 342,481.21 and 166,385.99 is: 229,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,087.61 : 342,481.21 = 166,385.99 : x
  2. Step 2: Convert to fraction form
    248,087.61/342,481.21 = 166,385.99/x
  3. Step 3: Cross multiply
    248,087.61x = 342,481.21 × 166,385.99
  4. Step 4: Simplify right side
    248,087.61x = 56,984,075,622.49
  5. Step 5: Solve for x
    x = 56,984,075,622.49/248,087.61
  6. Step 6: Final answer
    x = 229,693.36

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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.