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Finding the Fourth Proportional to 236,082.84, 325,784.82 and 128,650.56

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Solution

The fourth proportional to 236,082.84, 325,784.82 and 128,650.56 is: 177,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,082.84 : 325,784.82 = 128,650.56 : x
  2. Step 2: Convert to fraction form
    236,082.84/325,784.82 = 128,650.56/x
  3. Step 3: Cross multiply
    236,082.84x = 325,784.82 × 128,650.56
  4. Step 4: Simplify right side
    236,082.84x = 41,912,399,532.50
  5. Step 5: Solve for x
    x = 41,912,399,532.50/236,082.84
  6. Step 6: Final answer
    x = 177,532.60

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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.