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Finding the Fourth Proportional to 164,917.60, 231,351.20 and 164,917.60

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Solution

The fourth proportional to 164,917.60, 231,351.20 and 164,917.60 is: 231,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,917.60 : 231,351.20 = 164,917.60 : x
  2. Step 2: Convert to fraction form
    164,917.60/231,351.20 = 164,917.60/x
  3. Step 3: Cross multiply
    164,917.60x = 231,351.20 × 164,917.60
  4. Step 4: Simplify right side
    164,917.60x = 38,153,884,661.12
  5. Step 5: Solve for x
    x = 38,153,884,661.12/164,917.60
  6. Step 6: Final answer
    x = 231,351.20

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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.