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Finding the Fourth Proportional to 118,522.80, 177,806.34 and 39,637.44

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Solution

The fourth proportional to 118,522.80, 177,806.34 and 39,637.44 is: 59,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,522.80 : 177,806.34 = 39,637.44 : x
  2. Step 2: Convert to fraction form
    118,522.80/177,806.34 = 39,637.44/x
  3. Step 3: Cross multiply
    118,522.80x = 177,806.34 × 39,637.44
  4. Step 4: Simplify right side
    118,522.80x = 7,047,788,133.37
  5. Step 5: Solve for x
    x = 7,047,788,133.37/118,522.80
  6. Step 6: Final answer
    x = 59,463.56

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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.