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Finding the Fourth Proportional to 97,645.20, 146,467.80 and 84,814.80

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Solution

The fourth proportional to 97,645.20, 146,467.80 and 84,814.80 is: 127,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,645.20 : 146,467.80 = 84,814.80 : x
  2. Step 2: Convert to fraction form
    97,645.20/146,467.80 = 84,814.80/x
  3. Step 3: Cross multiply
    97,645.20x = 146,467.80 × 84,814.80
  4. Step 4: Simplify right side
    97,645.20x = 12,422,637,163.44
  5. Step 5: Solve for x
    x = 12,422,637,163.44/97,645.20
  6. Step 6: Final answer
    x = 127,222.20

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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.