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Finding the Fourth Proportional to 118,079.98, 177,147.64 and 47,006.96

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Solution

The fourth proportional to 118,079.98, 177,147.64 and 47,006.96 is: 70,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,079.98 : 177,147.64 = 47,006.96 : x
  2. Step 2: Convert to fraction form
    118,079.98/177,147.64 = 47,006.96/x
  3. Step 3: Cross multiply
    118,079.98x = 177,147.64 × 47,006.96
  4. Step 4: Simplify right side
    118,079.98x = 8,327,171,200.59
  5. Step 5: Solve for x
    x = 8,327,171,200.59/118,079.98
  6. Step 6: Final answer
    x = 70,521.45

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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.