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Finding the Fourth Proportional to 121,326.99, 181,990.92 and 37,086.81

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Solution

The fourth proportional to 121,326.99, 181,990.92 and 37,086.81 is: 55,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,326.99 : 181,990.92 = 37,086.81 : x
  2. Step 2: Convert to fraction form
    121,326.99/181,990.92 = 37,086.81/x
  3. Step 3: Cross multiply
    121,326.99x = 181,990.92 × 37,086.81
  4. Step 4: Simplify right side
    121,326.99x = 6,749,462,671.77
  5. Step 5: Solve for x
    x = 6,749,462,671.77/121,326.99
  6. Step 6: Final answer
    x = 55,630.35

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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.