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Finding the Fourth Proportional to 90,479.99, 135,793.76 and 46,119.39

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Solution

The fourth proportional to 90,479.99, 135,793.76 and 46,119.39 is: 69,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,479.99 : 135,793.76 = 46,119.39 : x
  2. Step 2: Convert to fraction form
    90,479.99/135,793.76 = 46,119.39/x
  3. Step 3: Cross multiply
    90,479.99x = 135,793.76 × 46,119.39
  4. Step 4: Simplify right side
    90,479.99x = 6,262,725,146.41
  5. Step 5: Solve for x
    x = 6,262,725,146.41/90,479.99
  6. Step 6: Final answer
    x = 69,216.69

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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.