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Finding the Fourth Proportional to 68,257.90, 94,203.60 and 38,045.98

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Solution

The fourth proportional to 68,257.90, 94,203.60 and 38,045.98 is: 52,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,257.90 : 94,203.60 = 38,045.98 : x
  2. Step 2: Convert to fraction form
    68,257.90/94,203.60 = 38,045.98/x
  3. Step 3: Cross multiply
    68,257.90x = 94,203.60 × 38,045.98
  4. Step 4: Simplify right side
    68,257.90x = 3,584,068,281.53
  5. Step 5: Solve for x
    x = 3,584,068,281.53/68,257.90
  6. Step 6: Final answer
    x = 52,507.74

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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.