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Finding the Fourth Proportional to 180,641.52, 271,130.40 and 91,961.41

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Solution

The fourth proportional to 180,641.52, 271,130.40 and 91,961.41 is: 138,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,641.52 : 271,130.40 = 91,961.41 : x
  2. Step 2: Convert to fraction form
    180,641.52/271,130.40 = 91,961.41/x
  3. Step 3: Cross multiply
    180,641.52x = 271,130.40 × 91,961.41
  4. Step 4: Simplify right side
    180,641.52x = 24,933,533,877.86
  5. Step 5: Solve for x
    x = 24,933,533,877.86/180,641.52
  6. Step 6: Final answer
    x = 138,027.70

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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.