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Finding the Fourth Proportional to 134,655.97, 185,825.85 and 74,225.31

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Solution

The fourth proportional to 134,655.97, 185,825.85 and 74,225.31 is: 102,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,655.97 : 185,825.85 = 74,225.31 : x
  2. Step 2: Convert to fraction form
    134,655.97/185,825.85 = 74,225.31/x
  3. Step 3: Cross multiply
    134,655.97x = 185,825.85 × 74,225.31
  4. Step 4: Simplify right side
    134,655.97x = 13,792,981,392.34
  5. Step 5: Solve for x
    x = 13,792,981,392.34/134,655.97
  6. Step 6: Final answer
    x = 102,431.27

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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.