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Finding the Fourth Proportional to 169,642.82, 254,551.72 and 69,876.74

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Solution

The fourth proportional to 169,642.82, 254,551.72 and 69,876.74 is: 104,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,642.82 : 254,551.72 = 69,876.74 : x
  2. Step 2: Convert to fraction form
    169,642.82/254,551.72 = 69,876.74/x
  3. Step 3: Cross multiply
    169,642.82x = 254,551.72 × 69,876.74
  4. Step 4: Simplify right side
    169,642.82x = 17,787,244,354.99
  5. Step 5: Solve for x
    x = 17,787,244,354.99/169,642.82
  6. Step 6: Final answer
    x = 104,851.15

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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.