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Finding the Fourth Proportional to 83,745.70, 115,570.34 and 45,506.00

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Solution

The fourth proportional to 83,745.70, 115,570.34 and 45,506.00 is: 62,798.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,745.70 : 115,570.34 = 45,506.00 : x
  2. Step 2: Convert to fraction form
    83,745.70/115,570.34 = 45,506.00/x
  3. Step 3: Cross multiply
    83,745.70x = 115,570.34 × 45,506.00
  4. Step 4: Simplify right side
    83,745.70x = 5,259,144,380.05
  5. Step 5: Solve for x
    x = 5,259,144,380.05/83,745.70
  6. Step 6: Final answer
    x = 62,798.98

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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.