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Finding the Fourth Proportional to 51,474.40, 77,211.60 and 49,068.70

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Solution

The fourth proportional to 51,474.40, 77,211.60 and 49,068.70 is: 73,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,474.40 : 77,211.60 = 49,068.70 : x
  2. Step 2: Convert to fraction form
    51,474.40/77,211.60 = 49,068.70/x
  3. Step 3: Cross multiply
    51,474.40x = 77,211.60 × 49,068.70
  4. Step 4: Simplify right side
    51,474.40x = 3,788,672,836.92
  5. Step 5: Solve for x
    x = 3,788,672,836.92/51,474.40
  6. Step 6: Final answer
    x = 73,603.05

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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.