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Finding the Fourth Proportional to 270,704.40, 406,056.60 and 73,712.40

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Solution

The fourth proportional to 270,704.40, 406,056.60 and 73,712.40 is: 110,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,704.40 : 406,056.60 = 73,712.40 : x
  2. Step 2: Convert to fraction form
    270,704.40/406,056.60 = 73,712.40/x
  3. Step 3: Cross multiply
    270,704.40x = 406,056.60 × 73,712.40
  4. Step 4: Simplify right side
    270,704.40x = 29,931,406,521.84
  5. Step 5: Solve for x
    x = 29,931,406,521.84/270,704.40
  6. Step 6: Final answer
    x = 110,568.60

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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.