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Finding the Fourth Proportional to 238,481.66, 357,724.52 and 70,004.78

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Solution

The fourth proportional to 238,481.66, 357,724.52 and 70,004.78 is: 105,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,481.66 : 357,724.52 = 70,004.78 : x
  2. Step 2: Convert to fraction form
    238,481.66/357,724.52 = 70,004.78/x
  3. Step 3: Cross multiply
    238,481.66x = 357,724.52 × 70,004.78
  4. Step 4: Simplify right side
    238,481.66x = 25,042,426,323.21
  5. Step 5: Solve for x
    x = 25,042,426,323.21/238,481.66
  6. Step 6: Final answer
    x = 105,007.77

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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.