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Finding the Fourth Proportional to 222,745.70, 307,385.34 and 125,948

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Solution

The fourth proportional to 222,745.70, 307,385.34 and 125,948 is: 173,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,745.70 : 307,385.34 = 125,948 : x
  2. Step 2: Convert to fraction form
    222,745.70/307,385.34 = 125,948/x
  3. Step 3: Cross multiply
    222,745.70x = 307,385.34 × 125,948
  4. Step 4: Simplify right side
    222,745.70x = 38,714,568,802.32
  5. Step 5: Solve for x
    x = 38,714,568,802.32/222,745.70
  6. Step 6: Final answer
    x = 173,806.13

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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.