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Finding the Fourth Proportional to 301,989.88, 453,028.56 and 112,434.76

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Solution

The fourth proportional to 301,989.88, 453,028.56 and 112,434.76 is: 168,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,989.88 : 453,028.56 = 112,434.76 : x
  2. Step 2: Convert to fraction form
    301,989.88/453,028.56 = 112,434.76/x
  3. Step 3: Cross multiply
    301,989.88x = 453,028.56 × 112,434.76
  4. Step 4: Simplify right side
    301,989.88x = 50,936,157,416.75
  5. Step 5: Solve for x
    x = 50,936,157,416.75/301,989.88
  6. Step 6: Final answer
    x = 168,668.42

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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.