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Finding the Fourth Proportional to 326,209.25, 489,384.26 and 98,485.97

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Solution

The fourth proportional to 326,209.25, 489,384.26 and 98,485.97 is: 147,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,209.25 : 489,384.26 = 98,485.97 : x
  2. Step 2: Convert to fraction form
    326,209.25/489,384.26 = 98,485.97/x
  3. Step 3: Cross multiply
    326,209.25x = 489,384.26 × 98,485.97
  4. Step 4: Simplify right side
    326,209.25x = 48,197,483,548.83
  5. Step 5: Solve for x
    x = 48,197,483,548.83/326,209.25
  6. Step 6: Final answer
    x = 147,750.20

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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.