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Finding the Fourth Proportional to 169,259.28, 253,874.52 and 69,390.96

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Solution

The fourth proportional to 169,259.28, 253,874.52 and 69,390.96 is: 104,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,259.28 : 253,874.52 = 69,390.96 : x
  2. Step 2: Convert to fraction form
    169,259.28/253,874.52 = 69,390.96/x
  3. Step 3: Cross multiply
    169,259.28x = 253,874.52 × 69,390.96
  4. Step 4: Simplify right side
    169,259.28x = 17,616,596,662.34
  5. Step 5: Solve for x
    x = 17,616,596,662.34/169,259.28
  6. Step 6: Final answer
    x = 104,080.54

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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.