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Finding the Fourth Proportional to 95,643.66, 131,988.30 and 53,201.28

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Solution

The fourth proportional to 95,643.66, 131,988.30 and 53,201.28 is: 73,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,643.66 : 131,988.30 = 53,201.28 : x
  2. Step 2: Convert to fraction form
    95,643.66/131,988.30 = 53,201.28/x
  3. Step 3: Cross multiply
    95,643.66x = 131,988.30 × 53,201.28
  4. Step 4: Simplify right side
    95,643.66x = 7,021,946,505.02
  5. Step 5: Solve for x
    x = 7,021,946,505.02/95,643.66
  6. Step 6: Final answer
    x = 73,417.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.