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Finding the Fourth Proportional to 89,662.40, 134,493.60 and 43,006.40

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Solution

The fourth proportional to 89,662.40, 134,493.60 and 43,006.40 is: 64,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,662.40 : 134,493.60 = 43,006.40 : x
  2. Step 2: Convert to fraction form
    89,662.40/134,493.60 = 43,006.40/x
  3. Step 3: Cross multiply
    89,662.40x = 134,493.60 × 43,006.40
  4. Step 4: Simplify right side
    89,662.40x = 5,784,085,559.04
  5. Step 5: Solve for x
    x = 5,784,085,559.04/89,662.40
  6. Step 6: Final answer
    x = 64,509.60

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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.