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Finding the Fourth Proportional to 110,705.60, 166,058.40 and 73,307.90

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Solution

The fourth proportional to 110,705.60, 166,058.40 and 73,307.90 is: 109,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,705.60 : 166,058.40 = 73,307.90 : x
  2. Step 2: Convert to fraction form
    110,705.60/166,058.40 = 73,307.90/x
  3. Step 3: Cross multiply
    110,705.60x = 166,058.40 × 73,307.90
  4. Step 4: Simplify right side
    110,705.60x = 12,173,392,581.36
  5. Step 5: Solve for x
    x = 12,173,392,581.36/110,705.60
  6. Step 6: Final answer
    x = 109,961.85

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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.