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Finding the Fourth Proportional to 83,149.01, 114,745.43 and 45,423.53

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Solution

The fourth proportional to 83,149.01, 114,745.43 and 45,423.53 is: 62,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,149.01 : 114,745.43 = 45,423.53 : x
  2. Step 2: Convert to fraction form
    83,149.01/114,745.43 = 45,423.53/x
  3. Step 3: Cross multiply
    83,149.01x = 114,745.43 × 45,423.53
  4. Step 4: Simplify right side
    83,149.01x = 5,212,142,021.80
  5. Step 5: Solve for x
    x = 5,212,142,021.80/83,149.01
  6. Step 6: Final answer
    x = 62,684.36

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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.