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Finding the Fourth Proportional to 73,664.70, 110,501.00 and 21,075.45

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Solution

The fourth proportional to 73,664.70, 110,501.00 and 21,075.45 is: 31,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,664.70 : 110,501.00 = 21,075.45 : x
  2. Step 2: Convert to fraction form
    73,664.70/110,501.00 = 21,075.45/x
  3. Step 3: Cross multiply
    73,664.70x = 110,501.00 × 21,075.45
  4. Step 4: Simplify right side
    73,664.70x = 2,328,858,195.07
  5. Step 5: Solve for x
    x = 2,328,858,195.07/73,664.70
  6. Step 6: Final answer
    x = 31,614.30

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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.