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Finding the Fourth Proportional to 133,779.45, 200,689.92 and 45,026.03

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Solution

The fourth proportional to 133,779.45, 200,689.92 and 45,026.03 is: 67,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,779.45 : 200,689.92 = 45,026.03 : x
  2. Step 2: Convert to fraction form
    133,779.45/200,689.92 = 45,026.03/x
  3. Step 3: Cross multiply
    133,779.45x = 200,689.92 × 45,026.03
  4. Step 4: Simplify right side
    133,779.45x = 9,036,269,355.17
  5. Step 5: Solve for x
    x = 9,036,269,355.17/133,779.45
  6. Step 6: Final answer
    x = 67,546.02

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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.