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Finding the Fourth Proportional to 68,335.29, 94,298.04 and 39,655.80

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Solution

The fourth proportional to 68,335.29, 94,298.04 and 39,655.80 is: 54,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,335.29 : 94,298.04 = 39,655.80 : x
  2. Step 2: Convert to fraction form
    68,335.29/94,298.04 = 39,655.80/x
  3. Step 3: Cross multiply
    68,335.29x = 94,298.04 × 39,655.80
  4. Step 4: Simplify right side
    68,335.29x = 3,739,464,214.63
  5. Step 5: Solve for x
    x = 3,739,464,214.63/68,335.29
  6. Step 6: Final answer
    x = 54,722.30

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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.