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Finding the Fourth Proportional to 125,753.34, 173,451.73 and 85,397.03

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Solution

The fourth proportional to 125,753.34, 173,451.73 and 85,397.03 is: 117,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,753.34 : 173,451.73 = 85,397.03 : x
  2. Step 2: Convert to fraction form
    125,753.34/173,451.73 = 85,397.03/x
  3. Step 3: Cross multiply
    125,753.34x = 173,451.73 × 85,397.03
  4. Step 4: Simplify right side
    125,753.34x = 14,812,263,295.84
  5. Step 5: Solve for x
    x = 14,812,263,295.84/125,753.34
  6. Step 6: Final answer
    x = 117,788.23

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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.