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Finding the Fourth Proportional to 239,768.23, 359,652.23 and 71,287.82

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Solution

The fourth proportional to 239,768.23, 359,652.23 and 71,287.82 is: 106,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,768.23 : 359,652.23 = 71,287.82 : x
  2. Step 2: Convert to fraction form
    239,768.23/359,652.23 = 71,287.82/x
  3. Step 3: Cross multiply
    239,768.23x = 359,652.23 × 71,287.82
  4. Step 4: Simplify right side
    239,768.23x = 25,638,823,434.84
  5. Step 5: Solve for x
    x = 25,638,823,434.84/239,768.23
  6. Step 6: Final answer
    x = 106,931.70

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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.