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Finding the Fourth Proportional to 61,805.70, 92,708.55 and 50,724.90

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Solution

The fourth proportional to 61,805.70, 92,708.55 and 50,724.90 is: 76,087.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805.70 : 92,708.55 = 50,724.90 : x
  2. Step 2: Convert to fraction form
    61,805.70/92,708.55 = 50,724.90/x
  3. Step 3: Cross multiply
    61,805.70x = 92,708.55 × 50,724.90
  4. Step 4: Simplify right side
    61,805.70x = 4,702,631,927.90
  5. Step 5: Solve for x
    x = 4,702,631,927.90/61,805.70
  6. Step 6: Final answer
    x = 76,087.35

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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.