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Finding the Fourth Proportional to 326,618.64, 489,923.62 and 158,154.03

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Solution

The fourth proportional to 326,618.64, 489,923.62 and 158,154.03 is: 237,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,618.64 : 489,923.62 = 158,154.03 : x
  2. Step 2: Convert to fraction form
    326,618.64/489,923.62 = 158,154.03/x
  3. Step 3: Cross multiply
    326,618.64x = 489,923.62 × 158,154.03
  4. Step 4: Simplify right side
    326,618.64x = 77,483,394,499.80
  5. Step 5: Solve for x
    x = 77,483,394,499.80/326,618.64
  6. Step 6: Final answer
    x = 237,228.94

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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.