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Finding the Fourth Proportional to 500,996.29, 751,483.50 and 121,918.72

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Solution

The fourth proportional to 500,996.29, 751,483.50 and 121,918.72 is: 182,875.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,996.29 : 751,483.50 = 121,918.72 : x
  2. Step 2: Convert to fraction form
    500,996.29/751,483.50 = 121,918.72/x
  3. Step 3: Cross multiply
    500,996.29x = 751,483.50 × 121,918.72
  4. Step 4: Simplify right side
    500,996.29x = 91,619,906,421.12
  5. Step 5: Solve for x
    x = 91,619,906,421.12/500,996.29
  6. Step 6: Final answer
    x = 182,875.42

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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.