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Finding the Fourth Proportional to 87,893.66, 121,292.52 and 47,606.48

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Solution

The fourth proportional to 87,893.66, 121,292.52 and 47,606.48 is: 65,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,893.66 : 121,292.52 = 47,606.48 : x
  2. Step 2: Convert to fraction form
    87,893.66/121,292.52 = 47,606.48/x
  3. Step 3: Cross multiply
    87,893.66x = 121,292.52 × 47,606.48
  4. Step 4: Simplify right side
    87,893.66x = 5,774,309,927.53
  5. Step 5: Solve for x
    x = 5,774,309,927.53/87,893.66
  6. Step 6: Final answer
    x = 65,696.55

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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.