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Finding the Fourth Proportional to 326,348.66, 489,552.15 and 101,711

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Solution

The fourth proportional to 326,348.66, 489,552.15 and 101,711 is: 152,575.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,348.66 : 489,552.15 = 101,711 : x
  2. Step 2: Convert to fraction form
    326,348.66/489,552.15 = 101,711/x
  3. Step 3: Cross multiply
    326,348.66x = 489,552.15 × 101,711
  4. Step 4: Simplify right side
    326,348.66x = 49,792,838,728.65
  5. Step 5: Solve for x
    x = 49,792,838,728.65/326,348.66
  6. Step 6: Final answer
    x = 152,575.59

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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.