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Finding the Fourth Proportional to 97,238.80, 145,858.20 and 57,216.70

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Solution

The fourth proportional to 97,238.80, 145,858.20 and 57,216.70 is: 85,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,238.80 : 145,858.20 = 57,216.70 : x
  2. Step 2: Convert to fraction form
    97,238.80/145,858.20 = 57,216.70/x
  3. Step 3: Cross multiply
    97,238.80x = 145,858.20 × 57,216.70
  4. Step 4: Simplify right side
    97,238.80x = 8,345,524,871.94
  5. Step 5: Solve for x
    x = 8,345,524,871.94/97,238.80
  6. Step 6: Final answer
    x = 85,825.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.