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Finding the Fourth Proportional to 89,087.84, 133,647.12 and 29,929.20

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Solution

The fourth proportional to 89,087.84, 133,647.12 and 29,929.20 is: 44,898.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,087.84 : 133,647.12 = 29,929.20 : x
  2. Step 2: Convert to fraction form
    89,087.84/133,647.12 = 29,929.20/x
  3. Step 3: Cross multiply
    89,087.84x = 133,647.12 × 29,929.20
  4. Step 4: Simplify right side
    89,087.84x = 3,999,951,383.90
  5. Step 5: Solve for x
    x = 3,999,951,383.90/89,087.84
  6. Step 6: Final answer
    x = 44,898.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.