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Finding the Fourth Proportional to 168,693.70, 253,040.55 and 164,805.70

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Solution

The fourth proportional to 168,693.70, 253,040.55 and 164,805.70 is: 247,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,693.70 : 253,040.55 = 164,805.70 : x
  2. Step 2: Convert to fraction form
    168,693.70/253,040.55 = 164,805.70/x
  3. Step 3: Cross multiply
    168,693.70x = 253,040.55 × 164,805.70
  4. Step 4: Simplify right side
    168,693.70x = 41,702,524,971.14
  5. Step 5: Solve for x
    x = 41,702,524,971.14/168,693.70
  6. Step 6: Final answer
    x = 247,208.55

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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.