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Finding the Fourth Proportional to 72,880.68, 100,557.76 and 41,049.56

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Solution

The fourth proportional to 72,880.68, 100,557.76 and 41,049.56 is: 56,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,880.68 : 100,557.76 = 41,049.56 : x
  2. Step 2: Convert to fraction form
    72,880.68/100,557.76 = 41,049.56/x
  3. Step 3: Cross multiply
    72,880.68x = 100,557.76 × 41,049.56
  4. Step 4: Simplify right side
    72,880.68x = 4,127,851,802.59
  5. Step 5: Solve for x
    x = 4,127,851,802.59/72,880.68
  6. Step 6: Final answer
    x = 56,638.49

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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.