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Finding the Fourth Proportional to 72,369.44, 108,555.58 and 47,567.60

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Solution

The fourth proportional to 72,369.44, 108,555.58 and 47,567.60 is: 71,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,369.44 : 108,555.58 = 47,567.60 : x
  2. Step 2: Convert to fraction form
    72,369.44/108,555.58 = 47,567.60/x
  3. Step 3: Cross multiply
    72,369.44x = 108,555.58 × 47,567.60
  4. Step 4: Simplify right side
    72,369.44x = 5,163,728,407.21
  5. Step 5: Solve for x
    x = 5,163,728,407.21/72,369.44
  6. Step 6: Final answer
    x = 71,352.33

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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.