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Finding the Fourth Proportional to 73,353.82, 101,212.70 and 43,128.11

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Solution

The fourth proportional to 73,353.82, 101,212.70 and 43,128.11 is: 59,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,353.82 : 101,212.70 = 43,128.11 : x
  2. Step 2: Convert to fraction form
    73,353.82/101,212.70 = 43,128.11/x
  3. Step 3: Cross multiply
    73,353.82x = 101,212.70 × 43,128.11
  4. Step 4: Simplify right side
    73,353.82x = 4,365,112,459.00
  5. Step 5: Solve for x
    x = 4,365,112,459.00/73,353.82
  6. Step 6: Final answer
    x = 59,507.64

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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.