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Finding the Fourth Proportional to 83,285.94, 114,932.85 and 45,558.90

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Solution

The fourth proportional to 83,285.94, 114,932.85 and 45,558.90 is: 62,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,285.94 : 114,932.85 = 45,558.90 : x
  2. Step 2: Convert to fraction form
    83,285.94/114,932.85 = 45,558.90/x
  3. Step 3: Cross multiply
    83,285.94x = 114,932.85 × 45,558.90
  4. Step 4: Simplify right side
    83,285.94x = 5,236,214,219.87
  5. Step 5: Solve for x
    x = 5,236,214,219.87/83,285.94
  6. Step 6: Final answer
    x = 62,870.33

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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.