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Finding the Fourth Proportional to 125,644.50, 173,389.41 and 69,055.88

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Solution

The fourth proportional to 125,644.50, 173,389.41 and 69,055.88 is: 95,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,644.50 : 173,389.41 = 69,055.88 : x
  2. Step 2: Convert to fraction form
    125,644.50/173,389.41 = 69,055.88/x
  3. Step 3: Cross multiply
    125,644.50x = 173,389.41 × 69,055.88
  4. Step 4: Simplify right side
    125,644.50x = 11,973,557,423.28
  5. Step 5: Solve for x
    x = 11,973,557,423.28/125,644.50
  6. Step 6: Final answer
    x = 95,297.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.