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Finding the Fourth Proportional to 272,018.60, 407,921.04 and 92,054.46

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Solution

The fourth proportional to 272,018.60, 407,921.04 and 92,054.46 is: 138,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,018.60 : 407,921.04 = 92,054.46 : x
  2. Step 2: Convert to fraction form
    272,018.60/407,921.04 = 92,054.46/x
  3. Step 3: Cross multiply
    272,018.60x = 407,921.04 × 92,054.46
  4. Step 4: Simplify right side
    272,018.60x = 37,550,951,059.84
  5. Step 5: Solve for x
    x = 37,550,951,059.84/272,018.60
  6. Step 6: Final answer
    x = 138,045.53

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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.