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Finding the Fourth Proportional to 117,730.80, 176,596.20 and 102,968.55

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Solution

The fourth proportional to 117,730.80, 176,596.20 and 102,968.55 is: 154,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,730.80 : 176,596.20 = 102,968.55 : x
  2. Step 2: Convert to fraction form
    117,730.80/176,596.20 = 102,968.55/x
  3. Step 3: Cross multiply
    117,730.80x = 176,596.20 × 102,968.55
  4. Step 4: Simplify right side
    117,730.80x = 18,183,854,649.51
  5. Step 5: Solve for x
    x = 18,183,854,649.51/117,730.80
  6. Step 6: Final answer
    x = 154,452.83

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1.5x scale

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.