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Finding the Fourth Proportional to 270,079.83, 405,139.46 and 92,585.34

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Solution

The fourth proportional to 270,079.83, 405,139.46 and 92,585.34 is: 138,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,079.83 : 405,139.46 = 92,585.34 : x
  2. Step 2: Convert to fraction form
    270,079.83/405,139.46 = 92,585.34/x
  3. Step 3: Cross multiply
    270,079.83x = 405,139.46 × 92,585.34
  4. Step 4: Simplify right side
    270,079.83x = 37,509,974,188.59
  5. Step 5: Solve for x
    x = 37,509,974,188.59/270,079.83
  6. Step 6: Final answer
    x = 138,884.77

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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.