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Finding the Fourth Proportional to 235,680.41, 325,238.36 and 128,250.41

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Solution

The fourth proportional to 235,680.41, 325,238.36 and 128,250.41 is: 176,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,680.41 : 325,238.36 = 128,250.41 : x
  2. Step 2: Convert to fraction form
    235,680.41/325,238.36 = 128,250.41/x
  3. Step 3: Cross multiply
    235,680.41x = 325,238.36 × 128,250.41
  4. Step 4: Simplify right side
    235,680.41x = 41,711,953,017.73
  5. Step 5: Solve for x
    x = 41,711,953,017.73/235,680.41
  6. Step 6: Final answer
    x = 176,985.24

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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.