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Finding the Fourth Proportional to 180,404.44, 270,601.07 and 85,702.77

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Solution

The fourth proportional to 180,404.44, 270,601.07 and 85,702.77 is: 128,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,404.44 : 270,601.07 = 85,702.77 : x
  2. Step 2: Convert to fraction form
    180,404.44/270,601.07 = 85,702.77/x
  3. Step 3: Cross multiply
    180,404.44x = 270,601.07 × 85,702.77
  4. Step 4: Simplify right side
    180,404.44x = 23,191,260,835.45
  5. Step 5: Solve for x
    x = 23,191,260,835.45/180,404.44
  6. Step 6: Final answer
    x = 128,551.50

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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.