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Finding the Fourth Proportional to 295,627.72, 407,957.70 and 161,491.72

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Solution

The fourth proportional to 295,627.72, 407,957.70 and 161,491.72 is: 222,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,627.72 : 407,957.70 = 161,491.72 : x
  2. Step 2: Convert to fraction form
    295,627.72/407,957.70 = 161,491.72/x
  3. Step 3: Cross multiply
    295,627.72x = 407,957.70 × 161,491.72
  4. Step 4: Simplify right side
    295,627.72x = 65,881,790,660.24
  5. Step 5: Solve for x
    x = 65,881,790,660.24/295,627.72
  6. Step 6: Final answer
    x = 222,853.90

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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.