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Finding the Fourth Proportional to 295,568, 407,886 and 161,432

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Solution

The fourth proportional to 295,568, 407,886 and 161,432 is: 222,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,568 : 407,886 = 161,432 : x
  2. Step 2: Convert to fraction form
    295,568/407,886 = 161,432/x
  3. Step 3: Cross multiply
    295,568x = 407,886 × 161,432
  4. Step 4: Simplify right side
    295,568x = 65,845,852,752
  5. Step 5: Solve for x
    x = 65,845,852,752/295,568
  6. Step 6: Final answer
    x = 222,777.34

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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.