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Finding the Fourth Proportional to 234,803.68, 323,992.56 and 154,263.52

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Solution

The fourth proportional to 234,803.68, 323,992.56 and 154,263.52 is: 212,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,803.68 : 323,992.56 = 154,263.52 : x
  2. Step 2: Convert to fraction form
    234,803.68/323,992.56 = 154,263.52/x
  3. Step 3: Cross multiply
    234,803.68x = 323,992.56 × 154,263.52
  4. Step 4: Simplify right side
    234,803.68x = 49,980,232,759.41
  5. Step 5: Solve for x
    x = 49,980,232,759.41/234,803.68
  6. Step 6: Final answer
    x = 212,859.67

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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.