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Finding the Fourth Proportional to 155,481.75, 233,228.70 and 48,938.40

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Solution

The fourth proportional to 155,481.75, 233,228.70 and 48,938.40 is: 73,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,481.75 : 233,228.70 = 48,938.40 : x
  2. Step 2: Convert to fraction form
    155,481.75/233,228.70 = 48,938.40/x
  3. Step 3: Cross multiply
    155,481.75x = 233,228.70 × 48,938.40
  4. Step 4: Simplify right side
    155,481.75x = 11,413,839,412.08
  5. Step 5: Solve for x
    x = 11,413,839,412.08/155,481.75
  6. Step 6: Final answer
    x = 73,409.51

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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.