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Finding the Fourth Proportional to 294,036.01, 405,787.40 and 173,257.86

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Solution

The fourth proportional to 294,036.01, 405,787.40 and 173,257.86 is: 239,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,036.01 : 405,787.40 = 173,257.86 : x
  2. Step 2: Convert to fraction form
    294,036.01/405,787.40 = 173,257.86/x
  3. Step 3: Cross multiply
    294,036.01x = 405,787.40 × 173,257.86
  4. Step 4: Simplify right side
    294,036.01x = 70,305,856,538.96
  5. Step 5: Solve for x
    x = 70,305,856,538.96/294,036.01
  6. Step 6: Final answer
    x = 239,106.28

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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.