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Finding the Fourth Proportional to 171,620.06, 236,786.73 and 99,017.21

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Solution

The fourth proportional to 171,620.06, 236,786.73 and 99,017.21 is: 136,615.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,620.06 : 236,786.73 = 99,017.21 : x
  2. Step 2: Convert to fraction form
    171,620.06/236,786.73 = 99,017.21/x
  3. Step 3: Cross multiply
    171,620.06x = 236,786.73 × 99,017.21
  4. Step 4: Simplify right side
    171,620.06x = 23,445,959,690.60
  5. Step 5: Solve for x
    x = 23,445,959,690.60/171,620.06
  6. Step 6: Final answer
    x = 136,615.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.