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Finding the Fourth Proportional to 266,410.20, 399,096.90 and 160,915.80

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Solution

The fourth proportional to 266,410.20, 399,096.90 and 160,915.80 is: 241,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,410.20 : 399,096.90 = 160,915.80 : x
  2. Step 2: Convert to fraction form
    266,410.20/399,096.90 = 160,915.80/x
  3. Step 3: Cross multiply
    266,410.20x = 399,096.90 × 160,915.80
  4. Step 4: Simplify right side
    266,410.20x = 64,220,996,941.02
  5. Step 5: Solve for x
    x = 64,220,996,941.02/266,410.20
  6. Step 6: Final answer
    x = 241,060.58

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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.