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Finding the Fourth Proportional to 121,209.54, 181,890.03 and 46,336.02

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Solution

The fourth proportional to 121,209.54, 181,890.03 and 46,336.02 is: 69,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209.54 : 181,890.03 = 46,336.02 : x
  2. Step 2: Convert to fraction form
    121,209.54/181,890.03 = 46,336.02/x
  3. Step 3: Cross multiply
    121,209.54x = 181,890.03 × 46,336.02
  4. Step 4: Simplify right side
    121,209.54x = 8,428,060,067.88
  5. Step 5: Solve for x
    x = 8,428,060,067.88/121,209.54
  6. Step 6: Final answer
    x = 69,532.98

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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.