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Finding the Fourth Proportional to 448,558.76, 672,968.01 and 133,023.26

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Solution

The fourth proportional to 448,558.76, 672,968.01 and 133,023.26 is: 199,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,558.76 : 672,968.01 = 133,023.26 : x
  2. Step 2: Convert to fraction form
    448,558.76/672,968.01 = 133,023.26/x
  3. Step 3: Cross multiply
    448,558.76x = 672,968.01 × 133,023.26
  4. Step 4: Simplify right side
    448,558.76x = 89,520,398,565.91
  5. Step 5: Solve for x
    x = 89,520,398,565.91/448,558.76
  6. Step 6: Final answer
    x = 199,573.40

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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.