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Finding the Fourth Proportional to 160,711.80, 240,837.30 and 118,260.60

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Solution

The fourth proportional to 160,711.80, 240,837.30 and 118,260.60 is: 177,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,711.80 : 240,837.30 = 118,260.60 : x
  2. Step 2: Convert to fraction form
    160,711.80/240,837.30 = 118,260.60/x
  3. Step 3: Cross multiply
    160,711.80x = 240,837.30 × 118,260.60
  4. Step 4: Simplify right side
    160,711.80x = 28,481,563,600.38
  5. Step 5: Solve for x
    x = 28,481,563,600.38/160,711.80
  6. Step 6: Final answer
    x = 177,221.36

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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.