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Finding the Fourth Proportional to 61,047.36, 91,285.38 and 43,463.88

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Solution

The fourth proportional to 61,047.36, 91,285.38 and 43,463.88 is: 64,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,047.36 : 91,285.38 = 43,463.88 : x
  2. Step 2: Convert to fraction form
    61,047.36/91,285.38 = 43,463.88/x
  3. Step 3: Cross multiply
    61,047.36x = 91,285.38 × 43,463.88
  4. Step 4: Simplify right side
    61,047.36x = 3,967,616,802.07
  5. Step 5: Solve for x
    x = 3,967,616,802.07/61,047.36
  6. Step 6: Final answer
    x = 64,992.44

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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.