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Finding the Fourth Proportional to 353,117.40, 529,481.70 and 116,338.20

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Solution

The fourth proportional to 353,117.40, 529,481.70 and 116,338.20 is: 174,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,117.40 : 529,481.70 = 116,338.20 : x
  2. Step 2: Convert to fraction form
    353,117.40/529,481.70 = 116,338.20/x
  3. Step 3: Cross multiply
    353,117.40x = 529,481.70 × 116,338.20
  4. Step 4: Simplify right side
    353,117.40x = 61,598,947,910.94
  5. Step 5: Solve for x
    x = 61,598,947,910.94/353,117.40
  6. Step 6: Final answer
    x = 174,443.25

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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.