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Finding the Fourth Proportional to 83,943.96, 115,840.22 and 45,704.28

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Solution

The fourth proportional to 83,943.96, 115,840.22 and 45,704.28 is: 63,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,943.96 : 115,840.22 = 45,704.28 : x
  2. Step 2: Convert to fraction form
    83,943.96/115,840.22 = 45,704.28/x
  3. Step 3: Cross multiply
    83,943.96x = 115,840.22 × 45,704.28
  4. Step 4: Simplify right side
    83,943.96x = 5,294,393,850.14
  5. Step 5: Solve for x
    x = 5,294,393,850.14/83,943.96
  6. Step 6: Final answer
    x = 63,070.58

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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.