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Finding the Fourth Proportional to 248,039, 372,058.50 and 72,935

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Solution

The fourth proportional to 248,039, 372,058.50 and 72,935 is: 109,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,039 : 372,058.50 = 72,935 : x
  2. Step 2: Convert to fraction form
    248,039/372,058.50 = 72,935/x
  3. Step 3: Cross multiply
    248,039x = 372,058.50 × 72,935
  4. Step 4: Simplify right side
    248,039x = 27,136,086,697.50
  5. Step 5: Solve for x
    x = 27,136,086,697.50/248,039
  6. Step 6: Final answer
    x = 109,402.50

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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.