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Finding the Fourth Proportional to 155,087.73, 232,632.77 and 84,928.77

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Solution

The fourth proportional to 155,087.73, 232,632.77 and 84,928.77 is: 127,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,087.73 : 232,632.77 = 84,928.77 : x
  2. Step 2: Convert to fraction form
    155,087.73/232,632.77 = 84,928.77/x
  3. Step 3: Cross multiply
    155,087.73x = 232,632.77 × 84,928.77
  4. Step 4: Simplify right side
    155,087.73x = 19,757,214,593.15
  5. Step 5: Solve for x
    x = 19,757,214,593.15/155,087.73
  6. Step 6: Final answer
    x = 127,393.80

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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.