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Finding the Fourth Proportional to 238,991.93, 358,405.26 and 105,965.22

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Solution

The fourth proportional to 238,991.93, 358,405.26 and 105,965.22 is: 158,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,991.93 : 358,405.26 = 105,965.22 : x
  2. Step 2: Convert to fraction form
    238,991.93/358,405.26 = 105,965.22/x
  3. Step 3: Cross multiply
    238,991.93x = 358,405.26 × 105,965.22
  4. Step 4: Simplify right side
    238,991.93x = 37,978,492,225.06
  5. Step 5: Solve for x
    x = 37,978,492,225.06/238,991.93
  6. Step 6: Final answer
    x = 158,911.19

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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.