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Finding the Fourth Proportional to 1,145,115.20, 1,714,173.60 and 1,145,115.20

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Solution

The fourth proportional to 1,145,115.20, 1,714,173.60 and 1,145,115.20 is: 1,714,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,115.20 : 1,714,173.60 = 1,145,115.20 : x
  2. Step 2: Convert to fraction form
    1,145,115.20/1,714,173.60 = 1,145,115.20/x
  3. Step 3: Cross multiply
    1,145,115.20x = 1,714,173.60 × 1,145,115.20
  4. Step 4: Simplify right side
    1,145,115.20x = 1,962,926,244,798.72
  5. Step 5: Solve for x
    x = 1,962,926,244,798.72/1,145,115.20
  6. Step 6: Final answer
    x = 1,714,173.60

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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.