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Finding the Fourth Proportional to 259,618.50, 358,273.53 and 140,386.50

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Solution

The fourth proportional to 259,618.50, 358,273.53 and 140,386.50 is: 193,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,618.50 : 358,273.53 = 140,386.50 : x
  2. Step 2: Convert to fraction form
    259,618.50/358,273.53 = 140,386.50/x
  3. Step 3: Cross multiply
    259,618.50x = 358,273.53 × 140,386.50
  4. Step 4: Simplify right side
    259,618.50x = 50,296,766,919.35
  5. Step 5: Solve for x
    x = 50,296,766,919.35/259,618.50
  6. Step 6: Final answer
    x = 193,733.37

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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.