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Finding the Fourth Proportional to 158,958, 238,546.35 and 65,463.75

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Solution

The fourth proportional to 158,958, 238,546.35 and 65,463.75 is: 98,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,958 : 238,546.35 = 65,463.75 : x
  2. Step 2: Convert to fraction form
    158,958/238,546.35 = 65,463.75/x
  3. Step 3: Cross multiply
    158,958x = 238,546.35 × 65,463.75
  4. Step 4: Simplify right side
    158,958x = 15,616,138,619.81
  5. Step 5: Solve for x
    x = 15,616,138,619.81/158,958
  6. Step 6: Final answer
    x = 98,240.66

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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.