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Finding the Fourth Proportional to 118,488, 177,738.48 and 35,388.48

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Solution

The fourth proportional to 118,488, 177,738.48 and 35,388.48 is: 53,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,488 : 177,738.48 = 35,388.48 : x
  2. Step 2: Convert to fraction form
    118,488/177,738.48 = 35,388.48/x
  3. Step 3: Cross multiply
    118,488x = 177,738.48 × 35,388.48
  4. Step 4: Simplify right side
    118,488x = 6,289,894,644.71
  5. Step 5: Solve for x
    x = 6,289,894,644.71/118,488
  6. Step 6: Final answer
    x = 53,084.66

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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.