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Finding the Fourth Proportional to 169,367.85, 253,830.30 and 69,411.01

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Solution

The fourth proportional to 169,367.85, 253,830.30 and 69,411.01 is: 104,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,367.85 : 253,830.30 = 69,411.01 : x
  2. Step 2: Convert to fraction form
    169,367.85/253,830.30 = 69,411.01/x
  3. Step 3: Cross multiply
    169,367.85x = 253,830.30 × 69,411.01
  4. Step 4: Simplify right side
    169,367.85x = 17,618,617,491.60
  5. Step 5: Solve for x
    x = 17,618,617,491.60/169,367.85
  6. Step 6: Final answer
    x = 104,025.75

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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.