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Finding the Fourth Proportional to 164,854.80, 231,321.60 and 164,854.80

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Solution

The fourth proportional to 164,854.80, 231,321.60 and 164,854.80 is: 231,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,854.80 : 231,321.60 = 164,854.80 : x
  2. Step 2: Convert to fraction form
    164,854.80/231,321.60 = 164,854.80/x
  3. Step 3: Cross multiply
    164,854.80x = 231,321.60 × 164,854.80
  4. Step 4: Simplify right side
    164,854.80x = 38,134,476,103.68
  5. Step 5: Solve for x
    x = 38,134,476,103.68/164,854.80
  6. Step 6: Final answer
    x = 231,321.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.