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Finding the Fourth Proportional to 163,905.49, 245,900.49 and 89,006.41

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Solution

The fourth proportional to 163,905.49, 245,900.49 and 89,006.41 is: 133,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,905.49 : 245,900.49 = 89,006.41 : x
  2. Step 2: Convert to fraction form
    163,905.49/245,900.49 = 89,006.41/x
  3. Step 3: Cross multiply
    163,905.49x = 245,900.49 × 89,006.41
  4. Step 4: Simplify right side
    163,905.49x = 21,886,719,832.14
  5. Step 5: Solve for x
    x = 21,886,719,832.14/163,905.49
  6. Step 6: Final answer
    x = 133,532.56

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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.