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Finding the Fourth Proportional to 207,297.23, 310,447.53 and 118,280.85

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Solution

The fourth proportional to 207,297.23, 310,447.53 and 118,280.85 is: 177,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,297.23 : 310,447.53 = 118,280.85 : x
  2. Step 2: Convert to fraction form
    207,297.23/310,447.53 = 118,280.85/x
  3. Step 3: Cross multiply
    207,297.23x = 310,447.53 × 118,280.85
  4. Step 4: Simplify right side
    207,297.23x = 36,719,997,728.80
  5. Step 5: Solve for x
    x = 36,719,997,728.80/207,297.23
  6. Step 6: Final answer
    x = 177,136.95

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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.