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Finding the Fourth Proportional to 222,545.51, 307,112.39 and 120,573.51

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Solution

The fourth proportional to 222,545.51, 307,112.39 and 120,573.51 is: 166,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,545.51 : 307,112.39 = 120,573.51 : x
  2. Step 2: Convert to fraction form
    222,545.51/307,112.39 = 120,573.51/x
  3. Step 3: Cross multiply
    222,545.51x = 307,112.39 × 120,573.51
  4. Step 4: Simplify right side
    222,545.51x = 37,029,619,128.22
  5. Step 5: Solve for x
    x = 37,029,619,128.22/222,545.51
  6. Step 6: Final answer
    x = 166,391.22

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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.