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Finding the Fourth Proportional to 90,525.40, 135,735.47 and 60,573.86

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Solution

The fourth proportional to 90,525.40, 135,735.47 and 60,573.86 is: 90,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,525.40 : 135,735.47 = 60,573.86 : x
  2. Step 2: Convert to fraction form
    90,525.40/135,735.47 = 60,573.86/x
  3. Step 3: Cross multiply
    90,525.40x = 135,735.47 × 60,573.86
  4. Step 4: Simplify right side
    90,525.40x = 8,222,021,854.43
  5. Step 5: Solve for x
    x = 8,222,021,854.43/90,525.40
  6. Step 6: Final answer
    x = 90,825.58

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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.