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Finding the Fourth Proportional to 250,532.73, 345,749.31 and 148,618.53

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Solution

The fourth proportional to 250,532.73, 345,749.31 and 148,618.53 is: 205,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,532.73 : 345,749.31 = 148,618.53 : x
  2. Step 2: Convert to fraction form
    250,532.73/345,749.31 = 148,618.53/x
  3. Step 3: Cross multiply
    250,532.73x = 345,749.31 × 148,618.53
  4. Step 4: Simplify right side
    250,532.73x = 51,384,754,200.71
  5. Step 5: Solve for x
    x = 51,384,754,200.71/250,532.73
  6. Step 6: Final answer
    x = 205,101.96

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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.