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Finding the Fourth Proportional to 248,058.81, 371,866.68 and 90,176.04

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Solution

The fourth proportional to 248,058.81, 371,866.68 and 90,176.04 is: 135,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,058.81 : 371,866.68 = 90,176.04 : x
  2. Step 2: Convert to fraction form
    248,058.81/371,866.68 = 90,176.04/x
  3. Step 3: Cross multiply
    248,058.81x = 371,866.68 × 90,176.04
  4. Step 4: Simplify right side
    248,058.81x = 33,533,464,610.35
  5. Step 5: Solve for x
    x = 33,533,464,610.35/248,058.81
  6. Step 6: Final answer
    x = 135,183.53

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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.