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Finding the Fourth Proportional to 137,675.60, 206,529.80 and 48,938.07

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Solution

The fourth proportional to 137,675.60, 206,529.80 and 48,938.07 is: 73,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,675.60 : 206,529.80 = 48,938.07 : x
  2. Step 2: Convert to fraction form
    137,675.60/206,529.80 = 48,938.07/x
  3. Step 3: Cross multiply
    137,675.60x = 206,529.80 × 48,938.07
  4. Step 4: Simplify right side
    137,675.60x = 10,107,170,614.56
  5. Step 5: Solve for x
    x = 10,107,170,614.56/137,675.60
  6. Step 6: Final answer
    x = 73,412.94

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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.