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Finding the Fourth Proportional to 112,188.44, 154,820.58 and 61,887.44

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Solution

The fourth proportional to 112,188.44, 154,820.58 and 61,887.44 is: 85,404.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,188.44 : 154,820.58 = 61,887.44 : x
  2. Step 2: Convert to fraction form
    112,188.44/154,820.58 = 61,887.44/x
  3. Step 3: Cross multiply
    112,188.44x = 154,820.58 × 61,887.44
  4. Step 4: Simplify right side
    112,188.44x = 9,581,449,355.52
  5. Step 5: Solve for x
    x = 9,581,449,355.52/112,188.44
  6. Step 6: Final answer
    x = 85,404.96

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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.