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Finding the Fourth Proportional to 281,257.95, 388,136.99 and 152,196.41

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Solution

The fourth proportional to 281,257.95, 388,136.99 and 152,196.41 is: 210,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,257.95 : 388,136.99 = 152,196.41 : x
  2. Step 2: Convert to fraction form
    281,257.95/388,136.99 = 152,196.41/x
  3. Step 3: Cross multiply
    281,257.95x = 388,136.99 × 152,196.41
  4. Step 4: Simplify right side
    281,257.95x = 59,073,057,817.04
  5. Step 5: Solve for x
    x = 59,073,057,817.04/281,257.95
  6. Step 6: Final answer
    x = 210,031.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.