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Finding the Fourth Proportional to 111,833.19, 167,749.82 and 76,666.23

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Solution

The fourth proportional to 111,833.19, 167,749.82 and 76,666.23 is: 114,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,833.19 : 167,749.82 = 76,666.23 : x
  2. Step 2: Convert to fraction form
    111,833.19/167,749.82 = 76,666.23/x
  3. Step 3: Cross multiply
    111,833.19x = 167,749.82 × 76,666.23
  4. Step 4: Simplify right side
    111,833.19x = 12,860,745,899.25
  5. Step 5: Solve for x
    x = 12,860,745,899.25/111,833.19
  6. Step 6: Final answer
    x = 114,999.37

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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.