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Finding the Fourth Proportional to 118,019.52, 177,103.08 and 47,898.83

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Solution

The fourth proportional to 118,019.52, 177,103.08 and 47,898.83 is: 71,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,019.52 : 177,103.08 = 47,898.83 : x
  2. Step 2: Convert to fraction form
    118,019.52/177,103.08 = 47,898.83/x
  3. Step 3: Cross multiply
    118,019.52x = 177,103.08 × 47,898.83
  4. Step 4: Simplify right side
    118,019.52x = 8,483,029,435.88
  5. Step 5: Solve for x
    x = 8,483,029,435.88/118,019.52
  6. Step 6: Final answer
    x = 71,878.19

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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.