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Finding the Fourth Proportional to 169,021.80, 253,532.70 and 166,564.20

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Solution

The fourth proportional to 169,021.80, 253,532.70 and 166,564.20 is: 249,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,021.80 : 253,532.70 = 166,564.20 : x
  2. Step 2: Convert to fraction form
    169,021.80/253,532.70 = 166,564.20/x
  3. Step 3: Cross multiply
    169,021.80x = 253,532.70 × 166,564.20
  4. Step 4: Simplify right side
    169,021.80x = 42,229,471,349.34
  5. Step 5: Solve for x
    x = 42,229,471,349.34/169,021.80
  6. Step 6: Final answer
    x = 249,846.30

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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.