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Finding the Fourth Proportional to 199,611.85, 299,511.29 and 87,277.63

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Solution

The fourth proportional to 199,611.85, 299,511.29 and 87,277.63 is: 130,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,611.85 : 299,511.29 = 87,277.63 : x
  2. Step 2: Convert to fraction form
    199,611.85/299,511.29 = 87,277.63/x
  3. Step 3: Cross multiply
    199,611.85x = 299,511.29 × 87,277.63
  4. Step 4: Simplify right side
    199,611.85x = 26,140,635,549.44
  5. Step 5: Solve for x
    x = 26,140,635,549.44/199,611.85
  6. Step 6: Final answer
    x = 130,957.33

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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.