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Finding the Fourth Proportional to 90,555.54, 135,789.57 and 37,950.90

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Solution

The fourth proportional to 90,555.54, 135,789.57 and 37,950.90 is: 56,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555.54 : 135,789.57 = 37,950.90 : x
  2. Step 2: Convert to fraction form
    90,555.54/135,789.57 = 37,950.90/x
  3. Step 3: Cross multiply
    90,555.54x = 135,789.57 × 37,950.90
  4. Step 4: Simplify right side
    90,555.54x = 5,153,336,392.11
  5. Step 5: Solve for x
    x = 5,153,336,392.11/90,555.54
  6. Step 6: Final answer
    x = 56,908.02

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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.