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Finding the Fourth Proportional to 448,770.58, 672,980.91 and 168,134.74

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Solution

The fourth proportional to 448,770.58, 672,980.91 and 168,134.74 is: 252,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,770.58 : 672,980.91 = 168,134.74 : x
  2. Step 2: Convert to fraction form
    448,770.58/672,980.91 = 168,134.74/x
  3. Step 3: Cross multiply
    448,770.58x = 672,980.91 × 168,134.74
  4. Step 4: Simplify right side
    448,770.58x = 113,151,470,327.81
  5. Step 5: Solve for x
    x = 113,151,470,327.81/448,770.58
  6. Step 6: Final answer
    x = 252,136.56

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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.