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Finding the Fourth Proportional to 68,962.98, 95,187.08 and 40,687.50

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Solution

The fourth proportional to 68,962.98, 95,187.08 and 40,687.50 is: 56,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,962.98 : 95,187.08 = 40,687.50 : x
  2. Step 2: Convert to fraction form
    68,962.98/95,187.08 = 40,687.50/x
  3. Step 3: Cross multiply
    68,962.98x = 95,187.08 × 40,687.50
  4. Step 4: Simplify right side
    68,962.98x = 3,872,924,317.50
  5. Step 5: Solve for x
    x = 3,872,924,317.50/68,962.98
  6. Step 6: Final answer
    x = 56,159.47

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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.