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Finding the Fourth Proportional to 202,906.04, 280,100.01 and 121,263.09

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Solution

The fourth proportional to 202,906.04, 280,100.01 and 121,263.09 is: 167,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,906.04 : 280,100.01 = 121,263.09 : x
  2. Step 2: Convert to fraction form
    202,906.04/280,100.01 = 121,263.09/x
  3. Step 3: Cross multiply
    202,906.04x = 280,100.01 × 121,263.09
  4. Step 4: Simplify right side
    202,906.04x = 33,965,792,721.63
  5. Step 5: Solve for x
    x = 33,965,792,721.63/202,906.04
  6. Step 6: Final answer
    x = 167,396.66

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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.