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Finding the Fourth Proportional to 444,489.20, 666,733.80 and 112,065.20

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Solution

The fourth proportional to 444,489.20, 666,733.80 and 112,065.20 is: 168,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,489.20 : 666,733.80 = 112,065.20 : x
  2. Step 2: Convert to fraction form
    444,489.20/666,733.80 = 112,065.20/x
  3. Step 3: Cross multiply
    444,489.20x = 666,733.80 × 112,065.20
  4. Step 4: Simplify right side
    444,489.20x = 74,717,656,643.76
  5. Step 5: Solve for x
    x = 74,717,656,643.76/444,489.20
  6. Step 6: Final answer
    x = 168,097.80

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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.