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Finding the Fourth Proportional to 80,923.87, 111,674.94 and 45,113.11

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Solution

The fourth proportional to 80,923.87, 111,674.94 and 45,113.11 is: 62,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923.87 : 111,674.94 = 45,113.11 : x
  2. Step 2: Convert to fraction form
    80,923.87/111,674.94 = 45,113.11/x
  3. Step 3: Cross multiply
    80,923.87x = 111,674.94 × 45,113.11
  4. Step 4: Simplify right side
    80,923.87x = 5,038,003,852.46
  5. Step 5: Solve for x
    x = 5,038,003,852.46/80,923.87
  6. Step 6: Final answer
    x = 62,256.09

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1.5x scale

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.