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Finding the Fourth Proportional to 353,174.65, 529,761.97 and 103,856.65

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Solution

The fourth proportional to 353,174.65, 529,761.97 and 103,856.65 is: 155,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,174.65 : 529,761.97 = 103,856.65 : x
  2. Step 2: Convert to fraction form
    353,174.65/529,761.97 = 103,856.65/x
  3. Step 3: Cross multiply
    353,174.65x = 529,761.97 × 103,856.65
  4. Step 4: Simplify right side
    353,174.65x = 55,019,303,501.60
  5. Step 5: Solve for x
    x = 55,019,303,501.60/353,174.65
  6. Step 6: Final answer
    x = 155,784.97

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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.