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Finding the Fourth Proportional to 192,647.31, 265,906.71 and 112,090.39

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Solution

The fourth proportional to 192,647.31, 265,906.71 and 112,090.39 is: 154,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,647.31 : 265,906.71 = 112,090.39 : x
  2. Step 2: Convert to fraction form
    192,647.31/265,906.71 = 112,090.39/x
  3. Step 3: Cross multiply
    192,647.31x = 265,906.71 × 112,090.39
  4. Step 4: Simplify right side
    192,647.31x = 29,805,586,827.52
  5. Step 5: Solve for x
    x = 29,805,586,827.52/192,647.31
  6. Step 6: Final answer
    x = 154,715.82

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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.