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Finding the Fourth Proportional to 448,685.41, 672,882.51 and 149,085.55

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Solution

The fourth proportional to 448,685.41, 672,882.51 and 149,085.55 is: 223,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,685.41 : 672,882.51 = 149,085.55 : x
  2. Step 2: Convert to fraction form
    448,685.41/672,882.51 = 149,085.55/x
  3. Step 3: Cross multiply
    448,685.41x = 672,882.51 × 149,085.55
  4. Step 4: Simplify right side
    448,685.41x = 100,317,059,088.73
  5. Step 5: Solve for x
    x = 100,317,059,088.73/448,685.41
  6. Step 6: Final answer
    x = 223,579.94

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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.