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Finding the Fourth Proportional to 163,694.61, 245,085.70 and 83,560.19

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Solution

The fourth proportional to 163,694.61, 245,085.70 and 83,560.19 is: 125,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,694.61 : 245,085.70 = 83,560.19 : x
  2. Step 2: Convert to fraction form
    163,694.61/245,085.70 = 83,560.19/x
  3. Step 3: Cross multiply
    163,694.61x = 245,085.70 × 83,560.19
  4. Step 4: Simplify right side
    163,694.61x = 20,479,408,793.19
  5. Step 5: Solve for x
    x = 20,479,408,793.19/163,694.61
  6. Step 6: Final answer
    x = 125,107.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.