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Finding the Fourth Proportional to 146,636.50, 202,358.51 and 79,568.50

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Solution

The fourth proportional to 146,636.50, 202,358.51 and 79,568.50 is: 109,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,636.50 : 202,358.51 = 79,568.50 : x
  2. Step 2: Convert to fraction form
    146,636.50/202,358.51 = 79,568.50/x
  3. Step 3: Cross multiply
    146,636.50x = 202,358.51 × 79,568.50
  4. Step 4: Simplify right side
    146,636.50x = 16,101,362,705.09
  5. Step 5: Solve for x
    x = 16,101,362,705.09/146,636.50
  6. Step 6: Final answer
    x = 109,804.60

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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.