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Finding the Fourth Proportional to 326,601.55, 489,902.36 and 101,981.23

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Solution

The fourth proportional to 326,601.55, 489,902.36 and 101,981.23 is: 152,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,601.55 : 489,902.36 = 101,981.23 : x
  2. Step 2: Convert to fraction form
    326,601.55/489,902.36 = 101,981.23/x
  3. Step 3: Cross multiply
    326,601.55x = 489,902.36 × 101,981.23
  4. Step 4: Simplify right side
    326,601.55x = 49,960,845,252.70
  5. Step 5: Solve for x
    x = 49,960,845,252.70/326,601.55
  6. Step 6: Final answer
    x = 152,971.86

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1.5x scale

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.