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Finding the Fourth Proportional to 180,947.80, 271,421.70 and 124,960.60

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Solution

The fourth proportional to 180,947.80, 271,421.70 and 124,960.60 is: 187,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,947.80 : 271,421.70 = 124,960.60 : x
  2. Step 2: Convert to fraction form
    180,947.80/271,421.70 = 124,960.60/x
  3. Step 3: Cross multiply
    180,947.80x = 271,421.70 × 124,960.60
  4. Step 4: Simplify right side
    180,947.80x = 33,917,018,485.02
  5. Step 5: Solve for x
    x = 33,917,018,485.02/180,947.80
  6. Step 6: Final answer
    x = 187,440.90

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1.5x scale

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.