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Finding the Fourth Proportional to 238,912.71, 358,368.69 and 163,805.16

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Solution

The fourth proportional to 238,912.71, 358,368.69 and 163,805.16 is: 245,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,912.71 : 358,368.69 = 163,805.16 : x
  2. Step 2: Convert to fraction form
    238,912.71/358,368.69 = 163,805.16/x
  3. Step 3: Cross multiply
    238,912.71x = 358,368.69 × 163,805.16
  4. Step 4: Simplify right side
    238,912.71x = 58,702,640,604.44
  5. Step 5: Solve for x
    x = 58,702,640,604.44/238,912.71
  6. Step 6: Final answer
    x = 245,707.48

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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.