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Finding the Fourth Proportional to 71,258.88, 106,848.80 and 29,168.48

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Solution

The fourth proportional to 71,258.88, 106,848.80 and 29,168.48 is: 43,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,258.88 : 106,848.80 = 29,168.48 : x
  2. Step 2: Convert to fraction form
    71,258.88/106,848.80 = 29,168.48/x
  3. Step 3: Cross multiply
    71,258.88x = 106,848.80 × 29,168.48
  4. Step 4: Simplify right side
    71,258.88x = 3,116,617,085.82
  5. Step 5: Solve for x
    x = 3,116,617,085.82/71,258.88
  6. Step 6: Final answer
    x = 43,736.54

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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.