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Finding the Fourth Proportional to 500,728.06, 751,095.33 and 126,751.06

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Solution

The fourth proportional to 500,728.06, 751,095.33 and 126,751.06 is: 190,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,728.06 : 751,095.33 = 126,751.06 : x
  2. Step 2: Convert to fraction form
    500,728.06/751,095.33 = 126,751.06/x
  3. Step 3: Cross multiply
    500,728.06x = 751,095.33 × 126,751.06
  4. Step 4: Simplify right side
    500,728.06x = 95,202,129,238.55
  5. Step 5: Solve for x
    x = 95,202,129,238.55/500,728.06
  6. Step 6: Final answer
    x = 190,127.41

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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.