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Finding the Fourth Proportional to 84,124.20, 116,092.80 and 45,883.98

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Solution

The fourth proportional to 84,124.20, 116,092.80 and 45,883.98 is: 63,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,124.20 : 116,092.80 = 45,883.98 : x
  2. Step 2: Convert to fraction form
    84,124.20/116,092.80 = 45,883.98/x
  3. Step 3: Cross multiply
    84,124.20x = 116,092.80 × 45,883.98
  4. Step 4: Simplify right side
    84,124.20x = 5,326,799,713.34
  5. Step 5: Solve for x
    x = 5,326,799,713.34/84,124.20
  6. Step 6: Final answer
    x = 63,320.66

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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.