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Finding the Fourth Proportional to 73,690.66, 110,430.38 and 42,035.22

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Solution

The fourth proportional to 73,690.66, 110,430.38 and 42,035.22 is: 62,992.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,690.66 : 110,430.38 = 42,035.22 : x
  2. Step 2: Convert to fraction form
    73,690.66/110,430.38 = 42,035.22/x
  3. Step 3: Cross multiply
    73,690.66x = 110,430.38 × 42,035.22
  4. Step 4: Simplify right side
    73,690.66x = 4,641,965,317.98
  5. Step 5: Solve for x
    x = 4,641,965,317.98/73,690.66
  6. Step 6: Final answer
    x = 62,992.59

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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.