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Finding the Fourth Proportional to 64,999.92, 97,435.29 and 45,236.96

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Solution

The fourth proportional to 64,999.92, 97,435.29 and 45,236.96 is: 67,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,999.92 : 97,435.29 = 45,236.96 : x
  2. Step 2: Convert to fraction form
    64,999.92/97,435.29 = 45,236.96/x
  3. Step 3: Cross multiply
    64,999.92x = 97,435.29 × 45,236.96
  4. Step 4: Simplify right side
    64,999.92x = 4,407,675,829.14
  5. Step 5: Solve for x
    x = 4,407,675,829.14/64,999.92
  6. Step 6: Final answer
    x = 67,810.48

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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.