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Finding the Fourth Proportional to 125,503.50, 173,196.05 and 68,916.09

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Solution

The fourth proportional to 125,503.50, 173,196.05 and 68,916.09 is: 95,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,503.50 : 173,196.05 = 68,916.09 : x
  2. Step 2: Convert to fraction form
    125,503.50/173,196.05 = 68,916.09/x
  3. Step 3: Cross multiply
    125,503.50x = 173,196.05 × 68,916.09
  4. Step 4: Simplify right side
    125,503.50x = 11,935,994,224.86
  5. Step 5: Solve for x
    x = 11,935,994,224.86/125,503.50
  6. Step 6: Final answer
    x = 95,104.87

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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.