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Finding the Fourth Proportional to 72,458.22, 99,973.43 and 41,823.82

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Solution

The fourth proportional to 72,458.22, 99,973.43 and 41,823.82 is: 57,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,458.22 : 99,973.43 = 41,823.82 : x
  2. Step 2: Convert to fraction form
    72,458.22/99,973.43 = 41,823.82/x
  3. Step 3: Cross multiply
    72,458.22x = 99,973.43 × 41,823.82
  4. Step 4: Simplify right side
    72,458.22x = 4,181,270,473.80
  5. Step 5: Solve for x
    x = 4,181,270,473.80/72,458.22
  6. Step 6: Final answer
    x = 57,705.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.