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Finding the Fourth Proportional to 326,558.35, 489,842.71 and 124,157.54

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Solution

The fourth proportional to 326,558.35, 489,842.71 and 124,157.54 is: 186,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,558.35 : 489,842.71 = 124,157.54 : x
  2. Step 2: Convert to fraction form
    326,558.35/489,842.71 = 124,157.54/x
  3. Step 3: Cross multiply
    326,558.35x = 489,842.71 × 124,157.54
  4. Step 4: Simplify right side
    326,558.35x = 60,817,663,100.93
  5. Step 5: Solve for x
    x = 60,817,663,100.93/326,558.35
  6. Step 6: Final answer
    x = 186,238.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.