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Finding the Fourth Proportional to 70,136.64, 96,787.68 and 43,268.32

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Solution

The fourth proportional to 70,136.64, 96,787.68 and 43,268.32 is: 59,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136.64 : 96,787.68 = 43,268.32 : x
  2. Step 2: Convert to fraction form
    70,136.64/96,787.68 = 43,268.32/x
  3. Step 3: Cross multiply
    70,136.64x = 96,787.68 × 43,268.32
  4. Step 4: Simplify right side
    70,136.64x = 4,187,840,310.30
  5. Step 5: Solve for x
    x = 4,187,840,310.30/70,136.64
  6. Step 6: Final answer
    x = 59,709.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.