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Finding the Fourth Proportional to 153,890.60, 230,806.74 and 54,027.32

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Solution

The fourth proportional to 153,890.60, 230,806.74 and 54,027.32 is: 81,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,890.60 : 230,806.74 = 54,027.32 : x
  2. Step 2: Convert to fraction form
    153,890.60/230,806.74 = 54,027.32/x
  3. Step 3: Cross multiply
    153,890.60x = 230,806.74 × 54,027.32
  4. Step 4: Simplify right side
    153,890.60x = 12,469,869,600.14
  5. Step 5: Solve for x
    x = 12,469,869,600.14/153,890.60
  6. Step 6: Final answer
    x = 81,030.74

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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.