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Finding the Fourth Proportional to 89,662.90, 134,494.35 and 30,565.30

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Solution

The fourth proportional to 89,662.90, 134,494.35 and 30,565.30 is: 45,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,662.90 : 134,494.35 = 30,565.30 : x
  2. Step 2: Convert to fraction form
    89,662.90/134,494.35 = 30,565.30/x
  3. Step 3: Cross multiply
    89,662.90x = 134,494.35 × 30,565.30
  4. Step 4: Simplify right side
    89,662.90x = 4,110,860,156.06
  5. Step 5: Solve for x
    x = 4,110,860,156.06/89,662.90
  6. Step 6: Final answer
    x = 45,847.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.