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Finding the Fourth Proportional to 70,193.82, 96,623.36 and 61,225.70

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Solution

The fourth proportional to 70,193.82, 96,623.36 and 61,225.70 is: 84,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,193.82 : 96,623.36 = 61,225.70 : x
  2. Step 2: Convert to fraction form
    70,193.82/96,623.36 = 61,225.70/x
  3. Step 3: Cross multiply
    70,193.82x = 96,623.36 × 61,225.70
  4. Step 4: Simplify right side
    70,193.82x = 5,915,832,852.35
  5. Step 5: Solve for x
    x = 5,915,832,852.35/70,193.82
  6. Step 6: Final answer
    x = 84,278.54

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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.