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Finding the Fourth Proportional to 500,995.97, 751,495.47 and 121,916.76

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Solution

The fourth proportional to 500,995.97, 751,495.47 and 121,916.76 is: 182,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,995.97 : 751,495.47 = 121,916.76 : x
  2. Step 2: Convert to fraction form
    500,995.97/751,495.47 = 121,916.76/x
  3. Step 3: Cross multiply
    500,995.97x = 751,495.47 × 121,916.76
  4. Step 4: Simplify right side
    500,995.97x = 91,619,892,857.08
  5. Step 5: Solve for x
    x = 91,619,892,857.08/500,995.97
  6. Step 6: Final answer
    x = 182,875.51

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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.