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Finding the Fourth Proportional to 497,172.60, 745,758.09 and 123,195.60

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Solution

The fourth proportional to 497,172.60, 745,758.09 and 123,195.60 is: 184,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,172.60 : 745,758.09 = 123,195.60 : x
  2. Step 2: Convert to fraction form
    497,172.60/745,758.09 = 123,195.60/x
  3. Step 3: Cross multiply
    497,172.60x = 745,758.09 × 123,195.60
  4. Step 4: Simplify right side
    497,172.60x = 91,874,115,352.40
  5. Step 5: Solve for x
    x = 91,874,115,352.40/497,172.60
  6. Step 6: Final answer
    x = 184,793.20

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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.