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Finding the Fourth Proportional to 68,203.28, 94,242.56 and 53,134.84

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Solution

The fourth proportional to 68,203.28, 94,242.56 and 53,134.84 is: 73,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,203.28 : 94,242.56 = 53,134.84 : x
  2. Step 2: Convert to fraction form
    68,203.28/94,242.56 = 53,134.84/x
  3. Step 3: Cross multiply
    68,203.28x = 94,242.56 × 53,134.84
  4. Step 4: Simplify right side
    68,203.28x = 5,007,563,346.79
  5. Step 5: Solve for x
    x = 5,007,563,346.79/68,203.28
  6. Step 6: Final answer
    x = 73,421.15

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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.