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Finding the Fourth Proportional to 160,505.10, 240,786.45 and 67,020.30

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Solution

The fourth proportional to 160,505.10, 240,786.45 and 67,020.30 is: 100,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,505.10 : 240,786.45 = 67,020.30 : x
  2. Step 2: Convert to fraction form
    160,505.10/240,786.45 = 67,020.30/x
  3. Step 3: Cross multiply
    160,505.10x = 240,786.45 × 67,020.30
  4. Step 4: Simplify right side
    160,505.10x = 16,137,580,114.94
  5. Step 5: Solve for x
    x = 16,137,580,114.94/160,505.10
  6. Step 6: Final answer
    x = 100,542.48

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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.