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Finding the Fourth Proportional to 96,507.68, 145,418.96 and 79,361.60

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Solution

The fourth proportional to 96,507.68, 145,418.96 and 79,361.60 is: 119,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,507.68 : 145,418.96 = 79,361.60 : x
  2. Step 2: Convert to fraction form
    96,507.68/145,418.96 = 79,361.60/x
  3. Step 3: Cross multiply
    96,507.68x = 145,418.96 × 79,361.60
  4. Step 4: Simplify right side
    96,507.68x = 11,540,681,335.94
  5. Step 5: Solve for x
    x = 11,540,681,335.94/96,507.68
  6. Step 6: Final answer
    x = 119,583.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.