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Finding the Fourth Proportional to 118,019.60, 177,029.40 and 102,467.60

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Solution

The fourth proportional to 118,019.60, 177,029.40 and 102,467.60 is: 153,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,019.60 : 177,029.40 = 102,467.60 : x
  2. Step 2: Convert to fraction form
    118,019.60/177,029.40 = 102,467.60/x
  3. Step 3: Cross multiply
    118,019.60x = 177,029.40 × 102,467.60
  4. Step 4: Simplify right side
    118,019.60x = 18,139,777,747.44
  5. Step 5: Solve for x
    x = 18,139,777,747.44/118,019.60
  6. Step 6: Final answer
    x = 153,701.40

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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.