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Finding the Fourth Proportional to 238,462.48, 357,749.04 and 69,976

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Solution

The fourth proportional to 238,462.48, 357,749.04 and 69,976 is: 104,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,462.48 : 357,749.04 = 69,976 : x
  2. Step 2: Convert to fraction form
    238,462.48/357,749.04 = 69,976/x
  3. Step 3: Cross multiply
    238,462.48x = 357,749.04 × 69,976
  4. Step 4: Simplify right side
    238,462.48x = 25,033,846,823.04
  5. Step 5: Solve for x
    x = 25,033,846,823.04/238,462.48
  6. Step 6: Final answer
    x = 104,980.23

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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.