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Finding the Fourth Proportional to 500,782.53, 751,201.16 and 126,808.77

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Solution

The fourth proportional to 500,782.53, 751,201.16 and 126,808.77 is: 190,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,782.53 : 751,201.16 = 126,808.77 : x
  2. Step 2: Convert to fraction form
    500,782.53/751,201.16 = 126,808.77/x
  3. Step 3: Cross multiply
    500,782.53x = 751,201.16 × 126,808.77
  4. Step 4: Simplify right side
    500,782.53x = 95,258,894,488.13
  5. Step 5: Solve for x
    x = 95,258,894,488.13/500,782.53
  6. Step 6: Final answer
    x = 190,220.08

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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.