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Finding the Fourth Proportional to 118,063.77, 177,147.99 and 61,890.47

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Solution

The fourth proportional to 118,063.77, 177,147.99 and 61,890.47 is: 92,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,063.77 : 177,147.99 = 61,890.47 : x
  2. Step 2: Convert to fraction form
    118,063.77/177,147.99 = 61,890.47/x
  3. Step 3: Cross multiply
    118,063.77x = 177,147.99 × 61,890.47
  4. Step 4: Simplify right side
    118,063.77x = 10,963,771,474.92
  5. Step 5: Solve for x
    x = 10,963,771,474.92/118,063.77
  6. Step 6: Final answer
    x = 92,863.13

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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.