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Finding the Fourth Proportional to 125,451.82, 173,124.80 and 68,091.67

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Solution

The fourth proportional to 125,451.82, 173,124.80 and 68,091.67 is: 93,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,451.82 : 173,124.80 = 68,091.67 : x
  2. Step 2: Convert to fraction form
    125,451.82/173,124.80 = 68,091.67/x
  3. Step 3: Cross multiply
    125,451.82x = 173,124.80 × 68,091.67
  4. Step 4: Simplify right side
    125,451.82x = 11,788,356,750.42
  5. Step 5: Solve for x
    x = 11,788,356,750.42/125,451.82
  6. Step 6: Final answer
    x = 93,967.20

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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.