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Finding the Fourth Proportional to 90,574.76, 135,818.44 and 37,970.12

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Solution

The fourth proportional to 90,574.76, 135,818.44 and 37,970.12 is: 56,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,574.76 : 135,818.44 = 37,970.12 : x
  2. Step 2: Convert to fraction form
    90,574.76/135,818.44 = 37,970.12/x
  3. Step 3: Cross multiply
    90,574.76x = 135,818.44 × 37,970.12
  4. Step 4: Simplify right side
    90,574.76x = 5,157,042,465.01
  5. Step 5: Solve for x
    x = 5,157,042,465.01/90,574.76
  6. Step 6: Final answer
    x = 56,936.86

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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.