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Finding the Fourth Proportional to 302,473.78, 453,676.11 and 80,875.06

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Solution

The fourth proportional to 302,473.78, 453,676.11 and 80,875.06 is: 121,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,473.78 : 453,676.11 = 80,875.06 : x
  2. Step 2: Convert to fraction form
    302,473.78/453,676.11 = 80,875.06/x
  3. Step 3: Cross multiply
    302,473.78x = 453,676.11 × 80,875.06
  4. Step 4: Simplify right side
    302,473.78x = 36,691,082,616.82
  5. Step 5: Solve for x
    x = 36,691,082,616.82/302,473.78
  6. Step 6: Final answer
    x = 121,303.35

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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.