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Finding the Fourth Proportional to 500,697.06, 751,046.13 and 126,720.06

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Solution

The fourth proportional to 500,697.06, 751,046.13 and 126,720.06 is: 190,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,697.06 : 751,046.13 = 126,720.06 : x
  2. Step 2: Convert to fraction form
    500,697.06/751,046.13 = 126,720.06/x
  3. Step 3: Cross multiply
    500,697.06x = 751,046.13 × 126,720.06
  4. Step 4: Simplify right side
    500,697.06x = 95,172,610,656.37
  5. Step 5: Solve for x
    x = 95,172,610,656.37/500,697.06
  6. Step 6: Final answer
    x = 190,080.23

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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.