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Finding the Fourth Proportional to 193,851.78, 291,010.95 and 115,469.70

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Solution

The fourth proportional to 193,851.78, 291,010.95 and 115,469.70 is: 173,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,851.78 : 291,010.95 = 115,469.70 : x
  2. Step 2: Convert to fraction form
    193,851.78/291,010.95 = 115,469.70/x
  3. Step 3: Cross multiply
    193,851.78x = 291,010.95 × 115,469.70
  4. Step 4: Simplify right side
    193,851.78x = 33,602,947,093.22
  5. Step 5: Solve for x
    x = 33,602,947,093.22/193,851.78
  6. Step 6: Final answer
    x = 173,343.51

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1.5x scale

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.