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Finding the Fourth Proportional to 125,222.70, 172,806.94 and 67,863.67

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Solution

The fourth proportional to 125,222.70, 172,806.94 and 67,863.67 is: 93,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,222.70 : 172,806.94 = 67,863.67 : x
  2. Step 2: Convert to fraction form
    125,222.70/172,806.94 = 67,863.67/x
  3. Step 3: Cross multiply
    125,222.70x = 172,806.94 × 67,863.67
  4. Step 4: Simplify right side
    125,222.70x = 11,727,312,548.19
  5. Step 5: Solve for x
    x = 11,727,312,548.19/125,222.70
  6. Step 6: Final answer
    x = 93,651.65

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1.5x scale

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.