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Finding the Fourth Proportional to 443,500.10, 665,250.15 and 127,967.30

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Solution

The fourth proportional to 443,500.10, 665,250.15 and 127,967.30 is: 191,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,500.10 : 665,250.15 = 127,967.30 : x
  2. Step 2: Convert to fraction form
    443,500.10/665,250.15 = 127,967.30/x
  3. Step 3: Cross multiply
    443,500.10x = 665,250.15 × 127,967.30
  4. Step 4: Simplify right side
    443,500.10x = 85,130,265,520.10
  5. Step 5: Solve for x
    x = 85,130,265,520.10/443,500.10
  6. Step 6: Final answer
    x = 191,950.95

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Similar ratio
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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.