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Finding the Fourth Proportional to 497,005.70, 745,508.61 and 123,028.70

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Solution

The fourth proportional to 497,005.70, 745,508.61 and 123,028.70 is: 184,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,005.70 : 745,508.61 = 123,028.70 : x
  2. Step 2: Convert to fraction form
    497,005.70/745,508.61 = 123,028.70/x
  3. Step 3: Cross multiply
    497,005.70x = 745,508.61 × 123,028.70
  4. Step 4: Simplify right side
    497,005.70x = 91,718,951,399.56
  5. Step 5: Solve for x
    x = 91,718,951,399.56/497,005.70
  6. Step 6: Final answer
    x = 184,543.06

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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.