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Finding the Fourth Proportional to 248,043.67, 372,230.94 and 90,272.07

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Solution

The fourth proportional to 248,043.67, 372,230.94 and 90,272.07 is: 135,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,043.67 : 372,230.94 = 90,272.07 : x
  2. Step 2: Convert to fraction form
    248,043.67/372,230.94 = 90,272.07/x
  3. Step 3: Cross multiply
    248,043.67x = 372,230.94 × 90,272.07
  4. Step 4: Simplify right side
    248,043.67x = 33,602,057,810.37
  5. Step 5: Solve for x
    x = 33,602,057,810.37/248,043.67
  6. Step 6: Final answer
    x = 135,468.32

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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.