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Finding the Fourth Proportional to 108,796.79, 163,082.90 and 45,653.57

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Solution

The fourth proportional to 108,796.79, 163,082.90 and 45,653.57 is: 68,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,796.79 : 163,082.90 = 45,653.57 : x
  2. Step 2: Convert to fraction form
    108,796.79/163,082.90 = 45,653.57/x
  3. Step 3: Cross multiply
    108,796.79x = 163,082.90 × 45,653.57
  4. Step 4: Simplify right side
    108,796.79x = 7,445,317,112.79
  5. Step 5: Solve for x
    x = 7,445,317,112.79/108,796.79
  6. Step 6: Final answer
    x = 68,433.25

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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.