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Finding the Fourth Proportional to 381,995.48, 573,055.34 and 115,693.60

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Solution

The fourth proportional to 381,995.48, 573,055.34 and 115,693.60 is: 173,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,995.48 : 573,055.34 = 115,693.60 : x
  2. Step 2: Convert to fraction form
    381,995.48/573,055.34 = 115,693.60/x
  3. Step 3: Cross multiply
    381,995.48x = 573,055.34 × 115,693.60
  4. Step 4: Simplify right side
    381,995.48x = 66,298,835,283.82
  5. Step 5: Solve for x
    x = 66,298,835,283.82/381,995.48
  6. Step 6: Final answer
    x = 173,559.21

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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.