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Finding the Fourth Proportional to 119,990.67, 179,986.01 and 46,066.83

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Solution

The fourth proportional to 119,990.67, 179,986.01 and 46,066.83 is: 69,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,990.67 : 179,986.01 = 46,066.83 : x
  2. Step 2: Convert to fraction form
    119,990.67/179,986.01 = 46,066.83/x
  3. Step 3: Cross multiply
    119,990.67x = 179,986.01 × 46,066.83
  4. Step 4: Simplify right side
    119,990.67x = 8,291,384,694.71
  5. Step 5: Solve for x
    x = 8,291,384,694.71/119,990.67
  6. Step 6: Final answer
    x = 69,100.25

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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.