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Finding the Fourth Proportional to 352,152.49, 485,585.30 and 261,676.30

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Solution

The fourth proportional to 352,152.49, 485,585.30 and 261,676.30 is: 360,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,152.49 : 485,585.30 = 261,676.30 : x
  2. Step 2: Convert to fraction form
    352,152.49/485,585.30 = 261,676.30/x
  3. Step 3: Cross multiply
    352,152.49x = 485,585.30 × 261,676.30
  4. Step 4: Simplify right side
    352,152.49x = 127,066,160,902.08
  5. Step 5: Solve for x
    x = 127,066,160,902.08/352,152.49
  6. Step 6: Final answer
    x = 360,827.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.