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Finding the Fourth Proportional to 167,999.90, 252,021.45 and 83,803.10

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Solution

The fourth proportional to 167,999.90, 252,021.45 and 83,803.10 is: 125,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,999.90 : 252,021.45 = 83,803.10 : x
  2. Step 2: Convert to fraction form
    167,999.90/252,021.45 = 83,803.10/x
  3. Step 3: Cross multiply
    167,999.90x = 252,021.45 × 83,803.10
  4. Step 4: Simplify right side
    167,999.90x = 21,120,178,776.50
  5. Step 5: Solve for x
    x = 21,120,178,776.50/167,999.90
  6. Step 6: Final answer
    x = 125,715.42

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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.