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Finding the Fourth Proportional to 238,546.70, 357,764.66 and 70,021.77

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Solution

The fourth proportional to 238,546.70, 357,764.66 and 70,021.77 is: 105,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,546.70 : 357,764.66 = 70,021.77 : x
  2. Step 2: Convert to fraction form
    238,546.70/357,764.66 = 70,021.77/x
  3. Step 3: Cross multiply
    238,546.70x = 357,764.66 × 70,021.77
  4. Step 4: Simplify right side
    238,546.70x = 25,051,314,736.65
  5. Step 5: Solve for x
    x = 25,051,314,736.65/238,546.70
  6. Step 6: Final answer
    x = 105,016.40

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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.