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Finding the Fourth Proportional to 134,659.98, 185,822.42 and 74,227.50

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Solution

The fourth proportional to 134,659.98, 185,822.42 and 74,227.50 is: 102,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,659.98 : 185,822.42 = 74,227.50 : x
  2. Step 2: Convert to fraction form
    134,659.98/185,822.42 = 74,227.50/x
  3. Step 3: Cross multiply
    134,659.98x = 185,822.42 × 74,227.50
  4. Step 4: Simplify right side
    134,659.98x = 13,793,133,309.41
  5. Step 5: Solve for x
    x = 13,793,133,309.41/134,659.98
  6. Step 6: Final answer
    x = 102,429.34

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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.