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Finding the Fourth Proportional to 158,693.20, 238,039.56 and 65,133.04

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Solution

The fourth proportional to 158,693.20, 238,039.56 and 65,133.04 is: 97,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,693.20 : 238,039.56 = 65,133.04 : x
  2. Step 2: Convert to fraction form
    158,693.20/238,039.56 = 65,133.04/x
  3. Step 3: Cross multiply
    158,693.20x = 238,039.56 × 65,133.04
  4. Step 4: Simplify right side
    158,693.20x = 15,504,240,183.06
  5. Step 5: Solve for x
    x = 15,504,240,183.06/158,693.20
  6. Step 6: Final answer
    x = 97,699.46

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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.