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Finding the Fourth Proportional to 158,698.30, 238,047.45 and 69,906.10

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Solution

The fourth proportional to 158,698.30, 238,047.45 and 69,906.10 is: 104,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,698.30 : 238,047.45 = 69,906.10 : x
  2. Step 2: Convert to fraction form
    158,698.30/238,047.45 = 69,906.10/x
  3. Step 3: Cross multiply
    158,698.30x = 238,047.45 × 69,906.10
  4. Step 4: Simplify right side
    158,698.30x = 16,640,968,844.45
  5. Step 5: Solve for x
    x = 16,640,968,844.45/158,698.30
  6. Step 6: Final answer
    x = 104,859.15

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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.