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Finding the Fourth Proportional to 108,596.30, 162,780.78 and 45,452.60

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Solution

The fourth proportional to 108,596.30, 162,780.78 and 45,452.60 is: 68,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,596.30 : 162,780.78 = 45,452.60 : x
  2. Step 2: Convert to fraction form
    108,596.30/162,780.78 = 45,452.60/x
  3. Step 3: Cross multiply
    108,596.30x = 162,780.78 × 45,452.60
  4. Step 4: Simplify right side
    108,596.30x = 7,398,809,681.03
  5. Step 5: Solve for x
    x = 7,398,809,681.03/108,596.30
  6. Step 6: Final answer
    x = 68,131.32

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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.