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Finding the Fourth Proportional to 53,663.56, 80,307 and 43,107.64

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Solution

The fourth proportional to 53,663.56, 80,307 and 43,107.64 is: 64,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,663.56 : 80,307 = 43,107.64 : x
  2. Step 2: Convert to fraction form
    53,663.56/80,307 = 43,107.64/x
  3. Step 3: Cross multiply
    53,663.56x = 80,307 × 43,107.64
  4. Step 4: Simplify right side
    53,663.56x = 3,461,845,245.48
  5. Step 5: Solve for x
    x = 3,461,845,245.48/53,663.56
  6. Step 6: Final answer
    x = 64,510.17

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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.