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Finding the Fourth Proportional to 121,323.60, 181,899.24 and 46,380.60

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Solution

The fourth proportional to 121,323.60, 181,899.24 and 46,380.60 is: 69,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,323.60 : 181,899.24 = 46,380.60 : x
  2. Step 2: Convert to fraction form
    121,323.60/181,899.24 = 46,380.60/x
  3. Step 3: Cross multiply
    121,323.60x = 181,899.24 × 46,380.60
  4. Step 4: Simplify right side
    121,323.60x = 8,436,595,890.74
  5. Step 5: Solve for x
    x = 8,436,595,890.74/121,323.60
  6. Step 6: Final answer
    x = 69,537.96

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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.