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Finding the Fourth Proportional to 155,034.67, 213,971.24 and 94,640.47

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Solution

The fourth proportional to 155,034.67, 213,971.24 and 94,640.47 is: 130,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,034.67 : 213,971.24 = 94,640.47 : x
  2. Step 2: Convert to fraction form
    155,034.67/213,971.24 = 94,640.47/x
  3. Step 3: Cross multiply
    155,034.67x = 213,971.24 × 94,640.47
  4. Step 4: Simplify right side
    155,034.67x = 20,250,338,720.08
  5. Step 5: Solve for x
    x = 20,250,338,720.08/155,034.67
  6. Step 6: Final answer
    x = 130,618.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.