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Finding the Fourth Proportional to 68,392.46, 94,383.19 and 42,899.91

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Solution

The fourth proportional to 68,392.46, 94,383.19 and 42,899.91 is: 59,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,392.46 : 94,383.19 = 42,899.91 : x
  2. Step 2: Convert to fraction form
    68,392.46/94,383.19 = 42,899.91/x
  3. Step 3: Cross multiply
    68,392.46x = 94,383.19 × 42,899.91
  4. Step 4: Simplify right side
    68,392.46x = 4,049,030,356.51
  5. Step 5: Solve for x
    x = 4,049,030,356.51/68,392.46
  6. Step 6: Final answer
    x = 59,202.88

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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.