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Finding the Fourth Proportional to 118,124.90, 177,215.25 and 47,051.62

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Solution

The fourth proportional to 118,124.90, 177,215.25 and 47,051.62 is: 70,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,124.90 : 177,215.25 = 47,051.62 : x
  2. Step 2: Convert to fraction form
    118,124.90/177,215.25 = 47,051.62/x
  3. Step 3: Cross multiply
    118,124.90x = 177,215.25 × 47,051.62
  4. Step 4: Simplify right side
    118,124.90x = 8,338,264,601.21
  5. Step 5: Solve for x
    x = 8,338,264,601.21/118,124.90
  6. Step 6: Final answer
    x = 70,588.54

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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.