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Finding the Fourth Proportional to 158,987.56, 238,466.76 and 53,794.48

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Solution

The fourth proportional to 158,987.56, 238,466.76 and 53,794.48 is: 80,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,987.56 : 238,466.76 = 53,794.48 : x
  2. Step 2: Convert to fraction form
    158,987.56/238,466.76 = 53,794.48/x
  3. Step 3: Cross multiply
    158,987.56x = 238,466.76 × 53,794.48
  4. Step 4: Simplify right side
    158,987.56x = 12,828,195,351.48
  5. Step 5: Solve for x
    x = 12,828,195,351.48/158,987.56
  6. Step 6: Final answer
    x = 80,686.79

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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.