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Finding the Fourth Proportional to 180,876.40, 271,237.80 and 87,410.80

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Solution

The fourth proportional to 180,876.40, 271,237.80 and 87,410.80 is: 131,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,876.40 : 271,237.80 = 87,410.80 : x
  2. Step 2: Convert to fraction form
    180,876.40/271,237.80 = 87,410.80/x
  3. Step 3: Cross multiply
    180,876.40x = 271,237.80 × 87,410.80
  4. Step 4: Simplify right side
    180,876.40x = 23,709,113,088.24
  5. Step 5: Solve for x
    x = 23,709,113,088.24/180,876.40
  6. Step 6: Final answer
    x = 131,079.09

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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.