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Finding the Fourth Proportional to 221,553.89, 304,974.69 and 193,210.37

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Solution

The fourth proportional to 221,553.89, 304,974.69 and 193,210.37 is: 265,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,553.89 : 304,974.69 = 193,210.37 : x
  2. Step 2: Convert to fraction form
    221,553.89/304,974.69 = 193,210.37/x
  3. Step 3: Cross multiply
    221,553.89x = 304,974.69 × 193,210.37
  4. Step 4: Simplify right side
    221,553.89x = 58,924,272,695.54
  5. Step 5: Solve for x
    x = 58,924,272,695.54/221,553.89
  6. Step 6: Final answer
    x = 265,959.10

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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.