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Finding the Fourth Proportional to 94,409.28, 130,279.80 and 51,959.64

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Solution

The fourth proportional to 94,409.28, 130,279.80 and 51,959.64 is: 71,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,409.28 : 130,279.80 = 51,959.64 : x
  2. Step 2: Convert to fraction form
    94,409.28/130,279.80 = 51,959.64/x
  3. Step 3: Cross multiply
    94,409.28x = 130,279.80 × 51,959.64
  4. Step 4: Simplify right side
    94,409.28x = 6,769,291,507.27
  5. Step 5: Solve for x
    x = 6,769,291,507.27/94,409.28
  6. Step 6: Final answer
    x = 71,701.55

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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.