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Finding the Fourth Proportional to 448,699.29, 672,903.29 and 149,099.46

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Solution

The fourth proportional to 448,699.29, 672,903.29 and 149,099.46 is: 223,600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,699.29 : 672,903.29 = 149,099.46 : x
  2. Step 2: Convert to fraction form
    448,699.29/672,903.29 = 149,099.46/x
  3. Step 3: Cross multiply
    448,699.29x = 672,903.29 × 149,099.46
  4. Step 4: Simplify right side
    448,699.29x = 100,329,516,425.73
  5. Step 5: Solve for x
    x = 100,329,516,425.73/448,699.29
  6. Step 6: Final answer
    x = 223,600.79

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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.