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Finding the Fourth Proportional to 72,326.07, 99,788.39 and 46,791.99

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Solution

The fourth proportional to 72,326.07, 99,788.39 and 46,791.99 is: 64,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,326.07 : 99,788.39 = 46,791.99 : x
  2. Step 2: Convert to fraction form
    72,326.07/99,788.39 = 46,791.99/x
  3. Step 3: Cross multiply
    72,326.07x = 99,788.39 × 46,791.99
  4. Step 4: Simplify right side
    72,326.07x = 4,669,297,113.04
  5. Step 5: Solve for x
    x = 4,669,297,113.04/72,326.07
  6. Step 6: Final answer
    x = 64,558.98

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Why These Related Problems?

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