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Finding the Fourth Proportional to 169,258.58, 253,513.49 and 69,115.10

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Solution

The fourth proportional to 169,258.58, 253,513.49 and 69,115.10 is: 103,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,258.58 : 253,513.49 = 69,115.10 : x
  2. Step 2: Convert to fraction form
    169,258.58/253,513.49 = 69,115.10/x
  3. Step 3: Cross multiply
    169,258.58x = 253,513.49 × 69,115.10
  4. Step 4: Simplify right side
    169,258.58x = 17,521,608,599.56
  5. Step 5: Solve for x
    x = 17,521,608,599.56/169,258.58
  6. Step 6: Final answer
    x = 103,519.77

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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.