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Finding the Fourth Proportional to 153,917.60, 230,487.60 and 101,040.80

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Solution

The fourth proportional to 153,917.60, 230,487.60 and 101,040.80 is: 151,305.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,917.60 : 230,487.60 = 101,040.80 : x
  2. Step 2: Convert to fraction form
    153,917.60/230,487.60 = 101,040.80/x
  3. Step 3: Cross multiply
    153,917.60x = 230,487.60 × 101,040.80
  4. Step 4: Simplify right side
    153,917.60x = 23,288,651,494.08
  5. Step 5: Solve for x
    x = 23,288,651,494.08/153,917.60
  6. Step 6: Final answer
    x = 151,305.97

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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.