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Finding the Fourth Proportional to 222,603.55, 307,299.30 and 127,091.80

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Solution

The fourth proportional to 222,603.55, 307,299.30 and 127,091.80 is: 175,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,603.55 : 307,299.30 = 127,091.80 : x
  2. Step 2: Convert to fraction form
    222,603.55/307,299.30 = 127,091.80/x
  3. Step 3: Cross multiply
    222,603.55x = 307,299.30 × 127,091.80
  4. Step 4: Simplify right side
    222,603.55x = 39,055,221,175.74
  5. Step 5: Solve for x
    x = 39,055,221,175.74/222,603.55
  6. Step 6: Final answer
    x = 175,447.43

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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.