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Finding the Fourth Proportional to 248,058.79, 372,122.91 and 79,539.50

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Solution

The fourth proportional to 248,058.79, 372,122.91 and 79,539.50 is: 119,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,058.79 : 372,122.91 = 79,539.50 : x
  2. Step 2: Convert to fraction form
    248,058.79/372,122.91 = 79,539.50/x
  3. Step 3: Cross multiply
    248,058.79x = 372,122.91 × 79,539.50
  4. Step 4: Simplify right side
    248,058.79x = 29,598,471,130.25
  5. Step 5: Solve for x
    x = 29,598,471,130.25/248,058.79
  6. Step 6: Final answer
    x = 119,320.39

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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.