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Finding the Fourth Proportional to 72,560.55, 100,154.43 and 43,880.25

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Solution

The fourth proportional to 72,560.55, 100,154.43 and 43,880.25 is: 60,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,560.55 : 100,154.43 = 43,880.25 : x
  2. Step 2: Convert to fraction form
    72,560.55/100,154.43 = 43,880.25/x
  3. Step 3: Cross multiply
    72,560.55x = 100,154.43 × 43,880.25
  4. Step 4: Simplify right side
    72,560.55x = 4,394,801,427.01
  5. Step 5: Solve for x
    x = 4,394,801,427.01/72,560.55
  6. Step 6: Final answer
    x = 60,567.37

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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.