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Finding the Fourth Proportional to 451,266.12, 676,673.80 and 147,620.63

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Solution

The fourth proportional to 451,266.12, 676,673.80 and 147,620.63 is: 221,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,266.12 : 676,673.80 = 147,620.63 : x
  2. Step 2: Convert to fraction form
    451,266.12/676,673.80 = 147,620.63/x
  3. Step 3: Cross multiply
    451,266.12x = 676,673.80 × 147,620.63
  4. Step 4: Simplify right side
    451,266.12x = 99,891,013,983.13
  5. Step 5: Solve for x
    x = 99,891,013,983.13/451,266.12
  6. Step 6: Final answer
    x = 221,357.22

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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.