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Finding the Fourth Proportional to 113,472.20, 170,208.30 and 106,473.80

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Solution

The fourth proportional to 113,472.20, 170,208.30 and 106,473.80 is: 159,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,472.20 : 170,208.30 = 106,473.80 : x
  2. Step 2: Convert to fraction form
    113,472.20/170,208.30 = 106,473.80/x
  3. Step 3: Cross multiply
    113,472.20x = 170,208.30 × 106,473.80
  4. Step 4: Simplify right side
    113,472.20x = 18,122,724,492.54
  5. Step 5: Solve for x
    x = 18,122,724,492.54/113,472.20
  6. Step 6: Final answer
    x = 159,710.70

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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.