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Finding the Fourth Proportional to 314,932.44, 434,601.36 and 171,683.76

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Solution

The fourth proportional to 314,932.44, 434,601.36 and 171,683.76 is: 236,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,932.44 : 434,601.36 = 171,683.76 : x
  2. Step 2: Convert to fraction form
    314,932.44/434,601.36 = 171,683.76/x
  3. Step 3: Cross multiply
    314,932.44x = 434,601.36 × 171,683.76
  4. Step 4: Simplify right side
    314,932.44x = 74,613,995,585.91
  5. Step 5: Solve for x
    x = 74,613,995,585.91/314,932.44
  6. Step 6: Final answer
    x = 236,920.64

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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.