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Finding the Fourth Proportional to 149,716.88, 206,644.04 and 98,738.84

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Solution

The fourth proportional to 149,716.88, 206,644.04 and 98,738.84 is: 136,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,716.88 : 206,644.04 = 98,738.84 : x
  2. Step 2: Convert to fraction form
    149,716.88/206,644.04 = 98,738.84/x
  3. Step 3: Cross multiply
    149,716.88x = 206,644.04 × 98,738.84
  4. Step 4: Simplify right side
    149,716.88x = 20,403,792,802.51
  5. Step 5: Solve for x
    x = 20,403,792,802.51/149,716.88
  6. Step 6: Final answer
    x = 136,282.51

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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.