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Finding the Fourth Proportional to 444,068.80, 666,103.20 and 128,557.60

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Solution

The fourth proportional to 444,068.80, 666,103.20 and 128,557.60 is: 192,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,068.80 : 666,103.20 = 128,557.60 : x
  2. Step 2: Convert to fraction form
    444,068.80/666,103.20 = 128,557.60/x
  3. Step 3: Cross multiply
    444,068.80x = 666,103.20 × 128,557.60
  4. Step 4: Simplify right side
    444,068.80x = 85,632,628,744.32
  5. Step 5: Solve for x
    x = 85,632,628,744.32/444,068.80
  6. Step 6: Final answer
    x = 192,836.40

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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.