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Finding the Fourth Proportional to 244,586.80, 366,989.55 and 86,928.40

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Solution

The fourth proportional to 244,586.80, 366,989.55 and 86,928.40 is: 130,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,586.80 : 366,989.55 = 86,928.40 : x
  2. Step 2: Convert to fraction form
    244,586.80/366,989.55 = 86,928.40/x
  3. Step 3: Cross multiply
    244,586.80x = 366,989.55 × 86,928.40
  4. Step 4: Simplify right side
    244,586.80x = 31,901,814,398.22
  5. Step 5: Solve for x
    x = 31,901,814,398.22/244,586.80
  6. Step 6: Final answer
    x = 130,431.46

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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.