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Finding the Fourth Proportional to 323,673.90, 485,493.28 and 99,034.36

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Solution

The fourth proportional to 323,673.90, 485,493.28 and 99,034.36 is: 148,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,673.90 : 485,493.28 = 99,034.36 : x
  2. Step 2: Convert to fraction form
    323,673.90/485,493.28 = 99,034.36/x
  3. Step 3: Cross multiply
    323,673.90x = 485,493.28 × 99,034.36
  4. Step 4: Simplify right side
    323,673.90x = 48,080,516,269.10
  5. Step 5: Solve for x
    x = 48,080,516,269.10/323,673.90
  6. Step 6: Final answer
    x = 148,546.16

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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.