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Finding the Fourth Proportional to 238,515.47, 357,685.73 and 69,992.54

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Solution

The fourth proportional to 238,515.47, 357,685.73 and 69,992.54 is: 104,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,515.47 : 357,685.73 = 69,992.54 : x
  2. Step 2: Convert to fraction form
    238,515.47/357,685.73 = 69,992.54/x
  3. Step 3: Cross multiply
    238,515.47x = 357,685.73 × 69,992.54
  4. Step 4: Simplify right side
    238,515.47x = 25,035,332,414.49
  5. Step 5: Solve for x
    x = 25,035,332,414.49/238,515.47
  6. Step 6: Final answer
    x = 104,963.14

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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.