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Finding the Fourth Proportional to 94,296, 130,128.48 and 51,857.28

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Solution

The fourth proportional to 94,296, 130,128.48 and 51,857.28 is: 71,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,296 : 130,128.48 = 51,857.28 : x
  2. Step 2: Convert to fraction form
    94,296/130,128.48 = 51,857.28/x
  3. Step 3: Cross multiply
    94,296x = 130,128.48 × 51,857.28
  4. Step 4: Simplify right side
    94,296x = 6,748,109,023.33
  5. Step 5: Solve for x
    x = 6,748,109,023.33/94,296
  6. Step 6: Final answer
    x = 71,563.05

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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.