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Finding the Fourth Proportional to 86,974.70, 130,474.20 and 37,054.40

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Solution

The fourth proportional to 86,974.70, 130,474.20 and 37,054.40 is: 55,586.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.70 : 130,474.20 = 37,054.40 : x
  2. Step 2: Convert to fraction form
    86,974.70/130,474.20 = 37,054.40/x
  3. Step 3: Cross multiply
    86,974.70x = 130,474.20 × 37,054.40
  4. Step 4: Simplify right side
    86,974.70x = 4,834,643,196.48
  5. Step 5: Solve for x
    x = 4,834,643,196.48/86,974.70
  6. Step 6: Final answer
    x = 55,586.78

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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.