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Finding the Fourth Proportional to 103,366.79, 154,852.92 and 70,029.62

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Solution

The fourth proportional to 103,366.79, 154,852.92 and 70,029.62 is: 104,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,366.79 : 154,852.92 = 70,029.62 : x
  2. Step 2: Convert to fraction form
    103,366.79/154,852.92 = 70,029.62/x
  3. Step 3: Cross multiply
    103,366.79x = 154,852.92 × 70,029.62
  4. Step 4: Simplify right side
    103,366.79x = 10,844,290,369.23
  5. Step 5: Solve for x
    x = 10,844,290,369.23/103,366.79
  6. Step 6: Final answer
    x = 104,910.78

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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.