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Finding the Fourth Proportional to 68,486.61, 94,335.75 and 48,308.03

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Solution

The fourth proportional to 68,486.61, 94,335.75 and 48,308.03 is: 66,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,486.61 : 94,335.75 = 48,308.03 : x
  2. Step 2: Convert to fraction form
    68,486.61/94,335.75 = 48,308.03/x
  3. Step 3: Cross multiply
    68,486.61x = 94,335.75 × 48,308.03
  4. Step 4: Simplify right side
    68,486.61x = 4,557,173,769.39
  5. Step 5: Solve for x
    x = 4,557,173,769.39/68,486.61
  6. Step 6: Final answer
    x = 66,541.09

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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.