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Finding the Fourth Proportional to 235,764.96, 325,355.28 and 128,334.66

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Solution

The fourth proportional to 235,764.96, 325,355.28 and 128,334.66 is: 177,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,764.96 : 325,355.28 = 128,334.66 : x
  2. Step 2: Convert to fraction form
    235,764.96/325,355.28 = 128,334.66/x
  3. Step 3: Cross multiply
    235,764.96x = 325,355.28 × 128,334.66
  4. Step 4: Simplify right side
    235,764.96x = 41,754,359,238.00
  5. Step 5: Solve for x
    x = 41,754,359,238.00/235,764.96
  6. Step 6: Final answer
    x = 177,101.63

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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.