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Finding the Fourth Proportional to 137,475.70, 206,213.65 and 37,636.72

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Solution

The fourth proportional to 137,475.70, 206,213.65 and 37,636.72 is: 56,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,475.70 : 206,213.65 = 37,636.72 : x
  2. Step 2: Convert to fraction form
    137,475.70/206,213.65 = 37,636.72/x
  3. Step 3: Cross multiply
    137,475.70x = 206,213.65 × 37,636.72
  4. Step 4: Simplify right side
    137,475.70x = 7,761,204,795.60
  5. Step 5: Solve for x
    x = 7,761,204,795.60/137,475.70
  6. Step 6: Final answer
    x = 56,455.10

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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.