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Finding the Fourth Proportional to 90,601.80, 135,854.10 and 37,951.80

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Solution

The fourth proportional to 90,601.80, 135,854.10 and 37,951.80 is: 56,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,601.80 : 135,854.10 = 37,951.80 : x
  2. Step 2: Convert to fraction form
    90,601.80/135,854.10 = 37,951.80/x
  3. Step 3: Cross multiply
    90,601.80x = 135,854.10 × 37,951.80
  4. Step 4: Simplify right side
    90,601.80x = 5,155,907,632.38
  5. Step 5: Solve for x
    x = 5,155,907,632.38/90,601.80
  6. Step 6: Final answer
    x = 56,907.34

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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.