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Finding the Fourth Proportional to 109,066.40, 163,599.60 and 89,626.40

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Solution

The fourth proportional to 109,066.40, 163,599.60 and 89,626.40 is: 134,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,066.40 : 163,599.60 = 89,626.40 : x
  2. Step 2: Convert to fraction form
    109,066.40/163,599.60 = 89,626.40/x
  3. Step 3: Cross multiply
    109,066.40x = 163,599.60 × 89,626.40
  4. Step 4: Simplify right side
    109,066.40x = 14,662,843,189.44
  5. Step 5: Solve for x
    x = 14,662,843,189.44/109,066.40
  6. Step 6: Final answer
    x = 134,439.60

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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.