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Finding the Fourth Proportional to 170,178.84, 234,836.82 and 98,553.78

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Solution

The fourth proportional to 170,178.84, 234,836.82 and 98,553.78 is: 135,998.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,178.84 : 234,836.82 = 98,553.78 : x
  2. Step 2: Convert to fraction form
    170,178.84/234,836.82 = 98,553.78/x
  3. Step 3: Cross multiply
    170,178.84x = 234,836.82 × 98,553.78
  4. Step 4: Simplify right side
    170,178.84x = 23,144,056,294.18
  5. Step 5: Solve for x
    x = 23,144,056,294.18/170,178.84
  6. Step 6: Final answer
    x = 135,998.44

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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.