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Finding the Fourth Proportional to 74,696.25, 112,077.47 and 39,149.11

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Solution

The fourth proportional to 74,696.25, 112,077.47 and 39,149.11 is: 58,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,696.25 : 112,077.47 = 39,149.11 : x
  2. Step 2: Convert to fraction form
    74,696.25/112,077.47 = 39,149.11/x
  3. Step 3: Cross multiply
    74,696.25x = 112,077.47 × 39,149.11
  4. Step 4: Simplify right side
    74,696.25x = 4,387,733,201.55
  5. Step 5: Solve for x
    x = 4,387,733,201.55/74,696.25
  6. Step 6: Final answer
    x = 58,741.01

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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.