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Finding the Fourth Proportional to 83,816.40, 125,724.60 and 73,448.40

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Solution

The fourth proportional to 83,816.40, 125,724.60 and 73,448.40 is: 110,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,816.40 : 125,724.60 = 73,448.40 : x
  2. Step 2: Convert to fraction form
    83,816.40/125,724.60 = 73,448.40/x
  3. Step 3: Cross multiply
    83,816.40x = 125,724.60 × 73,448.40
  4. Step 4: Simplify right side
    83,816.40x = 9,234,270,710.64
  5. Step 5: Solve for x
    x = 9,234,270,710.64/83,816.40
  6. Step 6: Final answer
    x = 110,172.60

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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.