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Finding the Fourth Proportional to 96,383.32, 143,885.12 and 83,775.42

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Solution

The fourth proportional to 96,383.32, 143,885.12 and 83,775.42 is: 125,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,383.32 : 143,885.12 = 83,775.42 : x
  2. Step 2: Convert to fraction form
    96,383.32/143,885.12 = 83,775.42/x
  3. Step 3: Cross multiply
    96,383.32x = 143,885.12 × 83,775.42
  4. Step 4: Simplify right side
    96,383.32x = 12,054,035,940.87
  5. Step 5: Solve for x
    x = 12,054,035,940.87/96,383.32
  6. Step 6: Final answer
    x = 125,063.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.