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Finding the Fourth Proportional to 501,112.13, 751,712.00 and 127,135.13

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Solution

The fourth proportional to 501,112.13, 751,712.00 and 127,135.13 is: 190,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,112.13 : 751,712.00 = 127,135.13 : x
  2. Step 2: Convert to fraction form
    501,112.13/751,712.00 = 127,135.13/x
  3. Step 3: Cross multiply
    501,112.13x = 751,712.00 × 127,135.13
  4. Step 4: Simplify right side
    501,112.13x = 95,568,998,448.32
  5. Step 5: Solve for x
    x = 95,568,998,448.32/501,112.13
  6. Step 6: Final answer
    x = 190,713.80

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1.5x scale

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.