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Finding the Fourth Proportional to 164,019.30, 245,874.15 and 89,028.90

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Solution

The fourth proportional to 164,019.30, 245,874.15 and 89,028.90 is: 133,459.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,019.30 : 245,874.15 = 89,028.90 : x
  2. Step 2: Convert to fraction form
    164,019.30/245,874.15 = 89,028.90/x
  3. Step 3: Cross multiply
    164,019.30x = 245,874.15 × 89,028.90
  4. Step 4: Simplify right side
    164,019.30x = 21,889,905,112.94
  5. Step 5: Solve for x
    x = 21,889,905,112.94/164,019.30
  6. Step 6: Final answer
    x = 133,459.33

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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.