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Finding the Fourth Proportional to 256,605.91, 354,109.86 and 141,881.53

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Solution

The fourth proportional to 256,605.91, 354,109.86 and 141,881.53 is: 195,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,605.91 : 354,109.86 = 141,881.53 : x
  2. Step 2: Convert to fraction form
    256,605.91/354,109.86 = 141,881.53/x
  3. Step 3: Cross multiply
    256,605.91x = 354,109.86 × 141,881.53
  4. Step 4: Simplify right side
    256,605.91x = 50,241,648,724.89
  5. Step 5: Solve for x
    x = 50,241,648,724.89/256,605.91
  6. Step 6: Final answer
    x = 195,793.03

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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.