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Finding the Fourth Proportional to 168,368.99, 252,622.74 and 123,618.86

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Solution

The fourth proportional to 168,368.99, 252,622.74 and 123,618.86 is: 185,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,368.99 : 252,622.74 = 123,618.86 : x
  2. Step 2: Convert to fraction form
    168,368.99/252,622.74 = 123,618.86/x
  3. Step 3: Cross multiply
    168,368.99x = 252,622.74 × 123,618.86
  4. Step 4: Simplify right side
    168,368.99x = 31,228,933,865.76
  5. Step 5: Solve for x
    x = 31,228,933,865.76/168,368.99
  6. Step 6: Final answer
    x = 185,479.13

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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.