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Finding the Fourth Proportional to 125,446.76, 173,116.44 and 70,997.94

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Solution

The fourth proportional to 125,446.76, 173,116.44 and 70,997.94 is: 97,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,446.76 : 173,116.44 = 70,997.94 : x
  2. Step 2: Convert to fraction form
    125,446.76/173,116.44 = 70,997.94/x
  3. Step 3: Cross multiply
    125,446.76x = 173,116.44 × 70,997.94
  4. Step 4: Simplify right side
    125,446.76x = 12,290,910,620.13
  5. Step 5: Solve for x
    x = 12,290,910,620.13/125,446.76
  6. Step 6: Final answer
    x = 97,977.11

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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.