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Finding the Fourth Proportional to 89,892.70, 124,052.88 and 49,607.98

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Solution

The fourth proportional to 89,892.70, 124,052.88 and 49,607.98 is: 68,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,892.70 : 124,052.88 = 49,607.98 : x
  2. Step 2: Convert to fraction form
    89,892.70/124,052.88 = 49,607.98/x
  3. Step 3: Cross multiply
    89,892.70x = 124,052.88 × 49,607.98
  4. Step 4: Simplify right side
    89,892.70x = 6,154,012,789.98
  5. Step 5: Solve for x
    x = 6,154,012,789.98/89,892.70
  6. Step 6: Final answer
    x = 68,459.54

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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.