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Finding the Fourth Proportional to 113,590.08, 156,759.84 and 65,834.88

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Solution

The fourth proportional to 113,590.08, 156,759.84 and 65,834.88 is: 90,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,590.08 : 156,759.84 = 65,834.88 : x
  2. Step 2: Convert to fraction form
    113,590.08/156,759.84 = 65,834.88/x
  3. Step 3: Cross multiply
    113,590.08x = 156,759.84 × 65,834.88
  4. Step 4: Simplify right side
    113,590.08x = 10,320,265,255.22
  5. Step 5: Solve for x
    x = 10,320,265,255.22/113,590.08
  6. Step 6: Final answer
    x = 90,855.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.