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Finding the Fourth Proportional to 125,465.67, 173,142.78 and 68,104.96

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Solution

The fourth proportional to 125,465.67, 173,142.78 and 68,104.96 is: 93,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465.67 : 173,142.78 = 68,104.96 : x
  2. Step 2: Convert to fraction form
    125,465.67/173,142.78 = 68,104.96/x
  3. Step 3: Cross multiply
    125,465.67x = 173,142.78 × 68,104.96
  4. Step 4: Simplify right side
    125,465.67x = 11,791,882,106.19
  5. Step 5: Solve for x
    x = 11,791,882,106.19/125,465.67
  6. Step 6: Final answer
    x = 93,984.93

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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.