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Finding the Fourth Proportional to 111,073.51, 153,219.13 and 68,073.84

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Solution

The fourth proportional to 111,073.51, 153,219.13 and 68,073.84 is: 93,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,073.51 : 153,219.13 = 68,073.84 : x
  2. Step 2: Convert to fraction form
    111,073.51/153,219.13 = 68,073.84/x
  3. Step 3: Cross multiply
    111,073.51x = 153,219.13 × 68,073.84
  4. Step 4: Simplify right side
    111,073.51x = 10,430,214,540.56
  5. Step 5: Solve for x
    x = 10,430,214,540.56/111,073.51
  6. Step 6: Final answer
    x = 93,903.71

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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.