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Finding the Fourth Proportional to 107,387.76, 160,992.96 and 47,373.48

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Solution

The fourth proportional to 107,387.76, 160,992.96 and 47,373.48 is: 71,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,387.76 : 160,992.96 = 47,373.48 : x
  2. Step 2: Convert to fraction form
    107,387.76/160,992.96 = 47,373.48/x
  3. Step 3: Cross multiply
    107,387.76x = 160,992.96 × 47,373.48
  4. Step 4: Simplify right side
    107,387.76x = 7,626,796,770.70
  5. Step 5: Solve for x
    x = 7,626,796,770.70/107,387.76
  6. Step 6: Final answer
    x = 71,021.10

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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.