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Finding the Fourth Proportional to 68,702.60, 94,762.16 and 48,327.86

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Solution

The fourth proportional to 68,702.60, 94,762.16 and 48,327.86 is: 66,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,702.60 : 94,762.16 = 48,327.86 : x
  2. Step 2: Convert to fraction form
    68,702.60/94,762.16 = 48,327.86/x
  3. Step 3: Cross multiply
    68,702.60x = 94,762.16 × 48,327.86
  4. Step 4: Simplify right side
    68,702.60x = 4,579,652,401.78
  5. Step 5: Solve for x
    x = 4,579,652,401.78/68,702.60
  6. Step 6: Final answer
    x = 66,659.08

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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.