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Finding the Fourth Proportional to 153,816.40, 230,724.60 and 137,227.60

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Solution

The fourth proportional to 153,816.40, 230,724.60 and 137,227.60 is: 205,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,816.40 : 230,724.60 = 137,227.60 : x
  2. Step 2: Convert to fraction form
    153,816.40/230,724.60 = 137,227.60/x
  3. Step 3: Cross multiply
    153,816.40x = 230,724.60 × 137,227.60
  4. Step 4: Simplify right side
    153,816.40x = 31,661,783,118.96
  5. Step 5: Solve for x
    x = 31,661,783,118.96/153,816.40
  6. Step 6: Final answer
    x = 205,841.40

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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.