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Finding the Fourth Proportional to 118,486, 177,735.48 and 35,386.48

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Solution

The fourth proportional to 118,486, 177,735.48 and 35,386.48 is: 53,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,486 : 177,735.48 = 35,386.48 : x
  2. Step 2: Convert to fraction form
    118,486/177,735.48 = 35,386.48/x
  3. Step 3: Cross multiply
    118,486x = 177,735.48 × 35,386.48
  4. Step 4: Simplify right side
    118,486x = 6,289,433,008.31
  5. Step 5: Solve for x
    x = 6,289,433,008.31/118,486
  6. Step 6: Final answer
    x = 53,081.66

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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.