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Finding the Fourth Proportional to 235,117.73, 352,676.60 and 85,362.90

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Solution

The fourth proportional to 235,117.73, 352,676.60 and 85,362.90 is: 128,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,117.73 : 352,676.60 = 85,362.90 : x
  2. Step 2: Convert to fraction form
    235,117.73/352,676.60 = 85,362.90/x
  3. Step 3: Cross multiply
    235,117.73x = 352,676.60 × 85,362.90
  4. Step 4: Simplify right side
    235,117.73x = 30,105,496,911.33
  5. Step 5: Solve for x
    x = 30,105,496,911.33/235,117.73
  6. Step 6: Final answer
    x = 128,044.35

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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.