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Finding the Fourth Proportional to 125,823, 173,636.97 and 69,235.59

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Solution

The fourth proportional to 125,823, 173,636.97 and 69,235.59 is: 95,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,823 : 173,636.97 = 69,235.59 : x
  2. Step 2: Convert to fraction form
    125,823/173,636.97 = 69,235.59/x
  3. Step 3: Cross multiply
    125,823x = 173,636.97 × 69,235.59
  4. Step 4: Simplify right side
    125,823x = 12,021,858,063.76
  5. Step 5: Solve for x
    x = 12,021,858,063.76/125,823
  6. Step 6: Final answer
    x = 95,545.79

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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.