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Finding the Fourth Proportional to 73,911.80, 102,001.98 and 45,222.48

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Solution

The fourth proportional to 73,911.80, 102,001.98 and 45,222.48 is: 62,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,911.80 : 102,001.98 = 45,222.48 : x
  2. Step 2: Convert to fraction form
    73,911.80/102,001.98 = 45,222.48/x
  3. Step 3: Cross multiply
    73,911.80x = 102,001.98 × 45,222.48
  4. Step 4: Simplify right side
    73,911.80x = 4,612,782,500.51
  5. Step 5: Solve for x
    x = 4,612,782,500.51/73,911.80
  6. Step 6: Final answer
    x = 62,409.28

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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.