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Finding the Fourth Proportional to 256,510.33, 353,983.17 and 143,333.08

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Solution

The fourth proportional to 256,510.33, 353,983.17 and 143,333.08 is: 197,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,510.33 : 353,983.17 = 143,333.08 : x
  2. Step 2: Convert to fraction form
    256,510.33/353,983.17 = 143,333.08/x
  3. Step 3: Cross multiply
    256,510.33x = 353,983.17 × 143,333.08
  4. Step 4: Simplify right side
    256,510.33x = 50,737,498,024.26
  5. Step 5: Solve for x
    x = 50,737,498,024.26/256,510.33
  6. Step 6: Final answer
    x = 197,799.04

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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.