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Finding the Fourth Proportional to 487,996.38, 731,911.52 and 132,927.36

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Solution

The fourth proportional to 487,996.38, 731,911.52 and 132,927.36 is: 199,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,996.38 : 731,911.52 = 132,927.36 : x
  2. Step 2: Convert to fraction form
    487,996.38/731,911.52 = 132,927.36/x
  3. Step 3: Cross multiply
    487,996.38x = 731,911.52 × 132,927.36
  4. Step 4: Simplify right side
    487,996.38x = 97,291,066,107.19
  5. Step 5: Solve for x
    x = 97,291,066,107.19/487,996.38
  6. Step 6: Final answer
    x = 199,368.42

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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.