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Finding the Fourth Proportional to 74,510.70, 111,474.45 and 48,266.70

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Solution

The fourth proportional to 74,510.70, 111,474.45 and 48,266.70 is: 72,211.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,510.70 : 111,474.45 = 48,266.70 : x
  2. Step 2: Convert to fraction form
    74,510.70/111,474.45 = 48,266.70/x
  3. Step 3: Cross multiply
    74,510.70x = 111,474.45 × 48,266.70
  4. Step 4: Simplify right side
    74,510.70x = 5,380,503,835.82
  5. Step 5: Solve for x
    x = 5,380,503,835.82/74,510.70
  6. Step 6: Final answer
    x = 72,211.16

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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.