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Finding the Fourth Proportional to 68,835.84, 94,924.80 and 43,699.20

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Solution

The fourth proportional to 68,835.84, 94,924.80 and 43,699.20 is: 60,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,835.84 : 94,924.80 = 43,699.20 : x
  2. Step 2: Convert to fraction form
    68,835.84/94,924.80 = 43,699.20/x
  3. Step 3: Cross multiply
    68,835.84x = 94,924.80 × 43,699.20
  4. Step 4: Simplify right side
    68,835.84x = 4,148,137,820.16
  5. Step 5: Solve for x
    x = 4,148,137,820.16/68,835.84
  6. Step 6: Final answer
    x = 60,261.31

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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.