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Finding the Fourth Proportional to 170,972.40, 256,458.60 and 162,807.60

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Solution

The fourth proportional to 170,972.40, 256,458.60 and 162,807.60 is: 244,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,972.40 : 256,458.60 = 162,807.60 : x
  2. Step 2: Convert to fraction form
    170,972.40/256,458.60 = 162,807.60/x
  3. Step 3: Cross multiply
    170,972.40x = 256,458.60 × 162,807.60
  4. Step 4: Simplify right side
    170,972.40x = 41,753,409,165.36
  5. Step 5: Solve for x
    x = 41,753,409,165.36/170,972.40
  6. Step 6: Final answer
    x = 244,211.40

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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.