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Finding the Fourth Proportional to 86,053.80, 118,773.30 and 47,826.48

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Solution

The fourth proportional to 86,053.80, 118,773.30 and 47,826.48 is: 66,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.80 : 118,773.30 = 47,826.48 : x
  2. Step 2: Convert to fraction form
    86,053.80/118,773.30 = 47,826.48/x
  3. Step 3: Cross multiply
    86,053.80x = 118,773.30 × 47,826.48
  4. Step 4: Simplify right side
    86,053.80x = 5,680,508,856.98
  5. Step 5: Solve for x
    x = 5,680,508,856.98/86,053.80
  6. Step 6: Final answer
    x = 66,011.13

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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.