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Finding the Fourth Proportional to 89,630.90, 134,446.35 and 37,078.10

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Solution

The fourth proportional to 89,630.90, 134,446.35 and 37,078.10 is: 55,617.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,630.90 : 134,446.35 = 37,078.10 : x
  2. Step 2: Convert to fraction form
    89,630.90/134,446.35 = 37,078.10/x
  3. Step 3: Cross multiply
    89,630.90x = 134,446.35 × 37,078.10
  4. Step 4: Simplify right side
    89,630.90x = 4,985,015,209.94
  5. Step 5: Solve for x
    x = 4,985,015,209.94/89,630.90
  6. Step 6: Final answer
    x = 55,617.15

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1.5x scale

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.