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Finding the Fourth Proportional to 223,155.33, 307,953.99 and 122,553.33

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Solution

The fourth proportional to 223,155.33, 307,953.99 and 122,553.33 is: 169,123.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,155.33 : 307,953.99 = 122,553.33 : x
  2. Step 2: Convert to fraction form
    223,155.33/307,953.99 = 122,553.33/x
  3. Step 3: Cross multiply
    223,155.33x = 307,953.99 × 122,553.33
  4. Step 4: Simplify right side
    223,155.33x = 37,740,786,961.29
  5. Step 5: Solve for x
    x = 37,740,786,961.29/223,155.33
  6. Step 6: Final answer
    x = 169,123.39

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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.