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Finding the Fourth Proportional to 85,903.02, 118,542.16 and 47,662.16

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Solution

The fourth proportional to 85,903.02, 118,542.16 and 47,662.16 is: 65,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,903.02 : 118,542.16 = 47,662.16 : x
  2. Step 2: Convert to fraction form
    85,903.02/118,542.16 = 47,662.16/x
  3. Step 3: Cross multiply
    85,903.02x = 118,542.16 × 47,662.16
  4. Step 4: Simplify right side
    85,903.02x = 5,649,975,396.67
  5. Step 5: Solve for x
    x = 5,649,975,396.67/85,903.02
  6. Step 6: Final answer
    x = 65,771.56

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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.