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Finding the Fourth Proportional to 187,460.92, 281,191.38 and 82,280.80

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Solution

The fourth proportional to 187,460.92, 281,191.38 and 82,280.80 is: 123,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,460.92 : 281,191.38 = 82,280.80 : x
  2. Step 2: Convert to fraction form
    187,460.92/281,191.38 = 82,280.80/x
  3. Step 3: Cross multiply
    187,460.92x = 281,191.38 × 82,280.80
  4. Step 4: Simplify right side
    187,460.92x = 23,136,651,699.50
  5. Step 5: Solve for x
    x = 23,136,651,699.50/187,460.92
  6. Step 6: Final answer
    x = 123,421.20

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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.