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Finding the Fourth Proportional to 73,690.67, 110,430.39 and 42,035.24

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Solution

The fourth proportional to 73,690.67, 110,430.39 and 42,035.24 is: 62,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,690.67 : 110,430.39 = 42,035.24 : x
  2. Step 2: Convert to fraction form
    73,690.67/110,430.39 = 42,035.24/x
  3. Step 3: Cross multiply
    73,690.67x = 110,430.39 × 42,035.24
  4. Step 4: Simplify right side
    73,690.67x = 4,641,967,946.94
  5. Step 5: Solve for x
    x = 4,641,967,946.94/73,690.67
  6. Step 6: Final answer
    x = 62,992.61

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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.