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Finding the Fourth Proportional to 72,580.56, 108,901.56 and 35,168.48

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Solution

The fourth proportional to 72,580.56, 108,901.56 and 35,168.48 is: 52,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580.56 : 108,901.56 = 35,168.48 : x
  2. Step 2: Convert to fraction form
    72,580.56/108,901.56 = 35,168.48/x
  3. Step 3: Cross multiply
    72,580.56x = 108,901.56 × 35,168.48
  4. Step 4: Simplify right side
    72,580.56x = 3,829,902,330.58
  5. Step 5: Solve for x
    x = 3,829,902,330.58/72,580.56
  6. Step 6: Final answer
    x = 52,767.61

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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.