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Finding the Fourth Proportional to 171,626.40, 257,439.60 and 97,898.40

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Solution

The fourth proportional to 171,626.40, 257,439.60 and 97,898.40 is: 146,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,626.40 : 257,439.60 = 97,898.40 : x
  2. Step 2: Convert to fraction form
    171,626.40/257,439.60 = 97,898.40/x
  3. Step 3: Cross multiply
    171,626.40x = 257,439.60 × 97,898.40
  4. Step 4: Simplify right side
    171,626.40x = 25,202,924,936.64
  5. Step 5: Solve for x
    x = 25,202,924,936.64/171,626.40
  6. Step 6: Final answer
    x = 146,847.60

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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.