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Finding the Fourth Proportional to 118,466.54, 177,709.16 and 39,581.04

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Solution

The fourth proportional to 118,466.54, 177,709.16 and 39,581.04 is: 59,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,466.54 : 177,709.16 = 39,581.04 : x
  2. Step 2: Convert to fraction form
    118,466.54/177,709.16 = 39,581.04/x
  3. Step 3: Cross multiply
    118,466.54x = 177,709.16 × 39,581.04
  4. Step 4: Simplify right side
    118,466.54x = 7,033,913,370.33
  5. Step 5: Solve for x
    x = 7,033,913,370.33/118,466.54
  6. Step 6: Final answer
    x = 59,374.68

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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.